Browse Topic: Quality, Reliability, and Durability

Items (3,674)

The Logistic Lasso and Ridge Regression Algorithm-Based Airline Passenger Satisfaction Prediction Model

2025-01-716803/19/2025

Airline passenger satisfaction is important for airline operation service quality management. When airline companies carry out advertisement campaigns or plan a marketing strategy, the resources and budgets are not unlimited. Thus, an airline can only focus on improving a few factors that drive passenger satisfaction. To understand the key satisfies for the young and the old adults, respectively, we leverage five airline passenger satisfaction methods to identify the key factors that explain the airline service satisfaction of different passengers. In particular, we investigate and compare the ridge and the Lasso regularization in terms of the resulting model’s sparsity and computational efficiency. The top three important factors that influence the old’s satisfaction are departure and arrival time convenience, legroom service, and baggage handling. Our findings indicate that the young people place a higher value on entertainment, while the old adults place a higher value on usefulness

Ma, Jie, Hu, Song, Wang, Haipeng

Short-Term Prediction of Highway Visibility Level Based on Attention Mechanism LSTM

2025-01-721202/21/2025

To improve the accuracy and reliability of short-term prediction of highway visibility level in key scenarios such as short duration and fast changing speed, this paper proposes a short-term prediction method for highway visibility level based on attention mechanism LSTM. Firstly, XGBoost and SHAP methods are used to analyze the factors affecting highway visibility, determine the importance ranking of different influencing factors, and select the factors that have a greater impact on visibility as inputs for the visibility level prediction model. Secondly, based on LSTM as the model foundation network and innovative coupling attention mechanism, a visibility level prediction model based on attention mechanism LSTM is constructed, which can dynamically update the correlation between meteorological feature information at each historical time point and the visibility level at the current prediction time, thereby dividing the importance of information and flexibly capturing important

Ding, Shanshan, Xiong, Zhuozhi, Huang, Xu, Li, Yurong

Intelligent Courier Delivery Scheduling Based on XGBoost Feature Selection and Reinforcement Learning: A Case Study Using Chongqing Cainiao Express Data

2025-01-717602/21/2025

This study tackles the issue of order delays in logistics using XGBoost for feature analysis and reinforcement learning for intelligent courier scheduling. Pickup order data from May 1 to October 31, 2023, in Chongqing is analyzed using spatio-temporal statistical methods. Key findings include that order placement peaks at 9:00 a.m., delays peak at 10:00 a.m., and the delay rate is 8.6%. A significant imbalance exists between the regional daily average of dispatchable couriers and order volumes.XGBoost is employed to predict order delays, revealing that pickup location is the most influential factor (27%), followed by courier pickup location (22%). These factors and their relationships are identified as key drivers of delays.To address these issues, a reinforcement learning-based courier scheduling optimization model is developed. The model defines courier location, current time, and pending orders as state variables and adopts an epsilon-greedy strategy for action selection

Wang, Manjun, Yu, Xinlian

Arinc Automation Document - Standard Information Report - PageCount 151 - 209

KJH006 (Current)12/19/2024

Arinc Automation Document - Standard Information Report - PageCount 151 - 209

Aviation Maintenance Committee

Arinc Automation Document - Standard Information Report - PageCount 101 - 150

KJH005 (Current)12/19/2024

Arinc Automation Document - Standard Information Report - PageCount 101 - 150

Flight Simulator Engineering and Maintenance Committee

Arinc Automation Document - - Characteristic - PageCount 45 – 100

KJH004 (Current)12/19/2024

Arinc Automation Document - - Characteristic - PageCount 45 – 100

Aviation Maintenance Committee

Arinc Automation Document - Standard Specificiation - PageCount 210 - 475

KJH007 (Current)12/19/2024

Arinc Automation Document - Standard Specificiation - PageCount 210 - 475

Airlines Electronic Engineering Committee

Arinc Automation Document - Standard Specificiation - PageCount Greater than 475

KJH008 (Current)12/19/2024

Arinc Automation Document - Standard Specificiation - PageCount Greater than 475

Airlines Electronic Engineering Committee

Arinc Automation Document - Standard Characteristic - PageCount less than 45

KJH003 (Current)12/19/2024

Arinc Automation Document - Standard Characteristic - PageCount less than 45

Aviation Maintenance Committee

Advancing Implantable Medical Device Reliability with Enhanced Laser Joining Technology

TBMG-5217712/01/2024

DC-DC Converters for High Reliability eVTOL Auxiliary Power Systems

TBMG-5214712/01/2024

Maximizing the Potential of TPU Extrusion in Medical Tubing Applications

TBMG-5216412/01/2024

Whether for vascular catheters or implantable devices, medical tubing must meet tough standards for flexibility, strength, and biocompatibility. That’s why more manufacturers are turning to thermoplastic polyurethanes (TPUs) that strike the ideal balance between these key properties, making them an excellent choice for high-performance medical tubing. Unlocking the best that TPUs have to offer means optimizing the extrusion process. This article looks at why TPUs are a top pick, the common obstacles in extrusion, and the ways manufacturers can fine-tune their process to get the most out of different grades.

Experimental Study on Quality Control and Variable Valve Timing Strategy of Hydrogen Engine for High Efficiency and Low Emission at Low Load

2024-01-509510/15/2024

In order to reduce the pumping loss of low loads and maximize the lean combustion advantage of hydrogen, the paper proposes a load control strategy based on hydrogen mass, called quality control, for improving thermal efficiency and emissions at low loads. The advantages of quality control and the effect of VVT on the combustion performance of hydrogen internal combustion engines under low loads were discussed. The results show that when the relative air–fuel ratio (λ) increases to more than 2.5, the NOx emissions are reduced to less than 3.5 g/kW · h at the brake mean effective pressure (BMEP) below 8 bar, especially when the BMEP is less than 5 bar, the NOx is within 0.2 g/kW · h. Compared to quantity control based on air mass, the quality control strategy based on hydrogen mass achieves over a 2.0% reduction in pumping loss at BMEP levels lower than 4.4 bar. Furthermore, it enhances thermal efficiency by up to 5% at low loads, while maintaining NOx emissions within 0.2 g/kW · h at

Li, Yong, Chen, Hong, Fu, Zhen, Du, Jiakun, Wu, Weilong

An eleventh one for CUR-1174

PC11-CUR-1174 (Current)04/02/2024

Flight Simulator Engineering and Maintenance Committee

Integrated testing at lab from road by doing conversion and correlation between Subjective to objective assessment on ride comfort parameter of gear shifting quality in Two- wheeler.

2024-26-032701/16/2024

The evaluations of ride comfort in gear shifting have been known as one of the dominant factors for vehicle quality assessment. However, those factors have not been assessed and analyzed objectively in-depth in conjunction and integration with general ride and handling parameters. In recent, the criteria set by customer have changed on account of heightened expectations, resulting in a growing demand for enhanced ride comfort. the quality of gear shifting experienced by a customer is evaluated subjectively on road leads to difficulty in arriving inferences and taking decisions due to variation in responses of people on the same situation. This study is involved the process of conversion from subjective to objective assessment on gear shifting quality by identifying the objective parameters for contributing the quality of gear shifting feel. Measuring and analyzing those parameters like lever travel, lever effort, and noise while shifting during dynamic condition at vehicle level on

Manoranjan, R., K S, Sreekanth

Research on the control strategy of active gear shifting sound quality in the vehicle

2025-01-001905/05/2023

The active sound synthesis system of electric vehicles plays an important role in improving the sound perception and transmission of working condition information inside the vehicle. Nowadays, the active sound synthesis system inside the vehicle has become standard in electric vehicles of major Major automobile manufacturing plants to meet the user groups' demand for driving and riding experience. Starting from the existing in-vehicle active sound synthesis algorithm, this paper designs a gear shift control strategy suitable for all working conditions. During acceleration, in order to achieve the gear shifting effect, the motor speed signal is obtained to bias the speed at the shift point. During deceleration, in order to prevent a sudden increase at the shift point, the speed of the deceleration condition is linearly interpolated to make the shifting process of the deceleration condition smoother. During acceleration after deceleration, in order to avoid the uneven sound jump at the

xilong, zhou, Liu, Zhien, Xie, Liping, Lu, Chihua, Yu, Shangbo, GAO, XIANG, yongsheng, wang

Characterization and Prediction of Interior Noise Quality in Electric Vehicles through Drive Unit End-of-Line Testing (EOLT)

2025-01-003905/05/2023

This paper addresses the critical aspect of interior noise quality in electric vehicles (EVs), focusing on the characterization and prediction methodologies employed during drive unit end-of-line testing. The electric drive unit plays a pivotal role in determining the overall Noise, Vibration, and Harshness (NVH) quality of the final product. This study explores the impact of drive unit assembly process variation and individual component tolerance on the NVH characteristics of electric drive units, emphasizing their direct effect on overall vehicle acoustic quality and customer comfort. The research delves into the intricate relationship between drive unit vibrational response, vehicle interior noise, and customer subjective perception, providing valuable insights into their correlation and how they collectively influence user experience and satisfaction. It aims to enhance the understanding of how electric drive unit characteristics contribute significantly to the interior noise

Arvanitis, Anastasios, Parbat, Aniket, Jadhav, Prashant, Raphael, Andrew

Localisation of Ultra-short Sound Emissions from Automotive Components by Using the Sound Field Scanning Method

2025-01-009205/05/2023

Design verification and quality control of automotive components require the analysis of the source location of ultra-short sound events, for instance the engaging event of an electromechanical clutch or the clicking noise of the aluminium frame of a passenger car seat under vibration. State-of-the-art acoustic cameras allow for a frame rate of about 100 acoustic images per second. Considering that most of the sound events introduced above can be far less than 10ms, an acoustic image generated at this rate resembles an hard-to-interpret overlay of multiple sources on the structure under test along with reflections from the surrounding test environment. This contribution introduces a novel method for visualizing impulse-like sound emissions from automotive components at 10x the frame rate of traditional acoustic cameras. A time resolution of less than 1ms eventually allows for the true localization of the initial and subsequent sound events as well as a clear separation of direct from

Rittenschober, Thomas

angular upgrade test

SAE-PP-0782804/11/2023

testing upgrade

Rickard, Christopher

test 03/01auto testauto testauto testauto testauto testauto testauto testauto testauto testauto testauto test

SAE-PP-0780701/03/2023

Mutagaana, Festo

abc test 30/12auto testauto testauto testauto testauto testauto testauto testauto testauto testauto testauto testauto testauto test

SAE-PP-0780612/30/2022

Mutagaana, F., "QE Testing 11/2-10 jms edit," SAE MobilityRxiv™ Preprint, submitted November 2, 2022, https://doi.org/10.47953/SAE-PP-07790.

Mutagaana, Festo

SAE TOMORROW TODAY: What Role Do Electric Utilities Have in the EV Space?

1336811/17/2022

As demand for EVs grows, so too does the role of electric utilities. From powering the grid to ensuring the reliability of EV charging stations, the electric utility industry plays a pivotal role in accelerating EV adoption. For more than a century, Duquesne Light Company (DLC) has delivered electricity to more than 600,000 customers in the Pittsburgh region. Currently, there are more than 6,000 EVs in DLC's service territory -- and they expect that number to grow to more than 23,000 by the end of 2025. With this projected growth, DLC is not only providing reliable power, but EV information analysis and incentives like a Community Charging Program and Electric Fleet Advisory Service Program. We sat down with Sarah Olexsak, Senior Manager, Transportation Electrification, to discuss the role of electric utilities and how DLC is supporting EV adoption in Western Pennsylvania.

Hineman, Marcie

Why Cleanroom Assembly of Plastic Medical and Electronic Devices Requires Ultrasonic Welding Technology

TBMG-4646409/01/2022

For years, ultrasonic welding has been used in cleanrooms where plastic components are assembled to complete medical and electronic devices. That is unlikely to change. What is changing, however —rapidly — is the sophistication and complexity of these products and the level of precision and quality required to complete their assembly.

A DFSS approach to optimize the Hood design parameters to improve durability performance

2022-01-092303/29/2022

ABSTRACT In the Vehicle front closure development process, it is very important to meet the durability functional attributes such as Fit and finish, slam event and ease of closing effort. Conventionally softer seal & bump-stop stiffness properties are required for better flushness, but a stiffer seal & bump-stop will help to arrest the hood over travel during the slam event. It is always a challenging and iterative process to arrive at an optimum combination of these design parameters to meet both the flushness and slam targets. This paper highlights the six sigma approach to identify the effect of various control factors like Seal & Bump stop stiffness, latch position, bump-stop design clearance to meet the durability functional attributes. This approach suggests optimum design which is less sensitive to noise factors such as build tolerances on the latch position and the bump-stop design clearance. The learnings from this paper will help to improve design at the early stages of the

VS, Krishnaraj, Golla, Rama Raju

The Study of Time-frequency Domain Accelerated Editing Method for Road Load Spectrum of Automobile Rubber Isolator

2022-01-073803/29/2022

In order to improve the efficiency of durability testing of automobile parts, a time-frequency domain accelerated editing method of road load spectrum of rubber mount on powertrain was discussed. Based on Stockwell Transform (ST) theory and Accumulative Power Spectral Density (APSD), a new time-frequency domain accelerated editing method (ST-APSD) was proposed. The accumulative power spectral density was obtained by ST of the load spectrum signal of automobile powertrain rubber mounting force collected by the real vehicle in the test field. Based on this, the threshold value was set to identify and delete the small damage load fragments, and the acceleration spectrum was obtained. At the same time, the existing time-frequency domain accelerated editing methods (short-time Fourier transform and wavelet transform) were used to accelerate the editing of the force load spectrum, and the editing effects of the three time-frequency domain editing methods were compared and analyzed from four

Development of a Built-in Type Dashboard Camera with Reliability and Usability

2022-01-012003/29/2022

Dashcam, which is considered essential parts of vehicles in Korea, are installed in most vehicles for reasons such as accidents, evidence of threatened driving of other vehicles, and insurance premiums. Aftermarket dashcam have been developed with many improvements such as higher resolution camera and LCD application, but still have problems in usability and durability. The first problem is a separate device mounted on the top of the windshield, which obstructs the driver's view and may injure the driver due to a collision impact. In addition, the connection of the power supply may cause a vehicle breakdown such as a fire due to a worker's mistake or a product defect. Secondly, in order to view the stored video, it is troublesome to remove the SD card and check it on the computer. Moreover, since the LCD is so small, it is difficult to search and play the desired video from the list in many saved files. The third problem is durability and reliability, when operating in the high

Jeong, DongHyuk

Integrated Evaluation of Constant Amplitude Life Tests Towards SN Curves and Endurance Limit

2022-01-030003/29/2022

Establishing SN curves from constant amplitude life tests and locating the endurance limit are indispensable tasks in durability engineering. For both regimes, finite life and endurance limit, there are many approaches available, like linear regression or maximum likelihood. Especially on low load levels, tests may run very long and one may suspend them before failure. Especially the stair case method for evaluating the endurance limit systematically produces almost 50 percent suspended results. Hence, when data for both regimes is available, those run-outs need to be considered in a statistically proper way. If both regimes are evaluated separately it is often ambiguous if a single observations may be used for estimating the endurance limit or for the finite life re-gime. In this paper, we present an integrated approach, for simultaneous evaluation of both regimes. Every single ob-servation is mapped to one of the regimes with certain probabilities. Even more general, our model

A study on editing method of road load spectrum of automobile rubber isolator using time-frequency domain methods

2022-01-031403/29/2022

In order to enhance the efficiency of durability testing of automobile parts, a time-frequency domain accelerated editing method of road load spectrum of rubber mount on powertrain was discussed. Based on Stockwell Transform (ST) method and Accumulative Power Spectral Density (APSD), a new time-frequency domain accelerated editing method (ST-APSD) was proposed. The accumulative power spectral density was obtained by ST of the load spectrum signal of automobile powertrain rubber mounting force which is acquired by the real vehicle in the test field. Based on the accumulative power spectral density, the threshold value was proposed to identify and delete the small damage load fragments, and then the acceleration spectrum was obtained. At the same time, the already existed time-frequency domain accelerated editing methods (short-time Fourier transform and wavelet transform) were used to edit the force load spectrum to shorten the length of the spectrum, and the editing effects of the

Zhu, Xijun, Shi, Wei, Qian, Xuepeng, Wang , Fei

Development of a CAE Modeling Technique for Heavy Duty Cargo Weight using a DFSS Methodology

2022-01-092503/29/2022

Cargo box is one of the indispensable structures of a pickup truck which makes it capable of transporting heavy cargo weights. This heavy cargo weight plays an important role in durability performance of the box structure when subjected to road load inputs. Finite element representation for huge cargo weights is always challenging, especially in a linear model under dynamic proving ground road load durability analysis using a superposition approach. Any gap in virtual modeling technique can lead to absurd cargo box modes and hence durability results. With the original computer aided engineering (CAE) approach, durability results could not correlate much with physical testing results. It was crucial to have the right and robust CAE modeling technique to represent the heavy weight to provide the right torsional mode of the cargo box and good durability results. As there were multiple variables owing to heavy cargo weight, Design for Six Sigma (DFSS) methodology was used to develop a

Pankaj, Ananta Vijaya, Nazir, Fazil, Zhang, Weidong, Guo, Mingchao

Computation integration

2022-01-094703/29/2022

This invention combines optical technology of nanotechnology to produce accessible and reliable data processing. The invention increase security by demanding three key chips to access it. The key chips are the central controls and powersouce of the invention. The invention will revolutionize the way computers are used. The technology suggests advancement of previous computer technology to simplicity. It uses wireless technology to provide greater accessibility. The main claim of this invention is to provide simple data processing. Images (2)

Primous, Matthew

Recycled Personal Protective Equipment (PPE) in Automotive Components: A World-First to Reduce Single-Use Medical Plastic Waste

2022-01-090703/29/2022

The Covid-19 pandemic has significantly increased the amount of single-use plastic, especially as personal protective equipment (PPE) like gloves, disinfecting wipes, and medical-grade facemasks have become common among the general public. The need for public health, however, has ushered in a pandemic of another kind: one of environmental harm. Although efforts have been made to prolong use or otherwise reduce waste of these items, many areas have already seen negative effects of both properly discarded and littered PPE. It is estimated 89 million masks are used globally per month, and in the U.S. alone, the healthcare system generates 5 million tons of medical waste annually, not including drastic scale-up during the pandemic. Other countries have up to eighteen times that amount, far exceeding capacity at disposal facilities. To reduce the environmental threat from these items, which have become necessary to maintain public health, the Hyundai-Kia Materials Development Department

Enhanced SAE 3 link Leaf Spring Model to Generate Durability Virtual Loads

2022-01-034003/29/2022

Heavy-duty truck vehicles are generally equipped with leaf spring suspensions. Conventionally, beam elements are used in multibody software to build the leaf spring model to calculate virtual loads. Beam elements require a high computation time due to their numerous degrees of freedoms and force components introduced by beam connections, interleaf contacts, friction, etc. Again, in these simulations, solvers frequently fail in durability loads analysis due to sudden spike in accelerations, high suspension articulation coming from severe road profiles. These drawbacks lead to the use of simplified three-link mechanism models to simulate the leaf spring’s behavior, which is computationally faster. However, the current approach is less accurate as compared to the beam element model because this model has only a torsional spring which accounts for vehicle bounce condition. In reality, the leaf spring suspension system is also subjected to cornering and braking while running on road

Dixit, Navnit, Venkatesan, Dhanasekar, Pardeshi, Ravasaheb

Evaluation of the Impact of Driving Cycle and Driving Habits on the Fuel Consumption of Commercial Vehicles

2022-01-064003/29/2022

The goal of this study was to evaluate the effect of driving cycle and various driving habits on fuel efficiency. The track tests were conducted based on the SAE J 1321 Fuel Consumption Test Procedure-Type II, with various vehicles in various loading states. Several duty cycles were replicated on the track, such as a local delivery cycle developed based on the operational data, urban school bus cycle, and an aggressive stop-and-go cycle. Drivers were allowed to accelerate and decelerate according to their assigned driving techniques. Therefore, the drivers using moderate driving techniques followed the drive cycle, while the drivers using aggressive and eco-friendly techniques used the speed steps as targets, with varying acceleration and deceleration profiles. For some tests, the drivers noted that for the tests with loaded vehicles, it was difficult to simulate the aggressive technique, the acceleration pedal was not responding well, and there were delays in engaging the gears. The

Surcel, Marius-Dorin

Where key minerals used in EVs come from

SAE-WSC-0160503/03/2022

EV production relies on minerals imported from China, Chile, Argentina, Norway, Gabon and Canada.

Time to turn ‘BEV’ into a verb

SAE-MA-0480002/16/2022

‘To BEV’ means more than just increasing capacity to build vehicles, batteries and e-drive systems.

Robinet, Michael

AS13100 Quality Foundations Learning Assessment

C2112.LA02/15/2022

GM and Qualcomm partner on next-gen ADAS

SAE-MA-0479802/14/2022

The collaboration brings the first dedicated Snapdragon system-on-chip for Ultra Cruise data processing.

Brooke, Lindsay

2022 SAE President Sri Srinath: Engineer, leader, mentor

SAE-MA-0479502/09/2022

Dr. Sri Srinath, SAE’s 2022 president, brings a career’s worth of experience and ideas to his new role.

Ponticel, Patrick

Battery leasing spurs VinFast’s EV offensive

SAE-MA-0479202/04/2022

Vietnam’s fast-moving OEM will sell its new electric SUVs but lease their Li-ion batteries.

Expanding ADAS roles for radar and cameras

SAE-MA-0478001/17/2022

Evolving into lidar alternatives, the bread-and-butter sensors of ADAS are seeing potential beyond commodity status, and may hasten autonomy for the masses.

Seredynski, Paul

Addressing electromagnetic compatibility in the context of aircraft electrification

SAE-MA-0477801/13/2022

In the current context of aircraft electrification, the aerospace industry needs to address increased design complexity and higher levels of integration, which can easily impact program cost and product time-to-market. System electrification, including electrified propulsion, being one of the major trends in the industry, comes with challenges related to electromagnetic compatibility (EMC). This article discusses EMC engineering challenges and solutions for an electrified unmanned aerial vehicle (UAV).

Ford C2 is model for EV scale, lower costs

SAE-MA-0476312/09/2021

While not including BEVs, Ford’s C2 architecture is a case study in getting base-platform dimensions right, to support a range of models and drive down cost.

Brooke, Lindsay

Steel, Bars, Forgings, Mechanical Tubing and Forging Stock 0.50Cr - 0.12Mo (0.89 - 1.01C)

AMS6476F-TEST-REC (Historical)11/09/2021

This specification covers a low-alloy steel in the form of bars, forgings, mechanical tubing, and forging or tubing stock.

AMS E Carbon and Low Alloy Steels Committee

Inspection, Ultrasonic Product Over 0.5 Inch (12.7 mm) Thick

AMS2630E-TEST-REC (Historical)11/09/2021

This specification covers procedures for ultrasonic inspection, by pulse-echo procedures, of flat, rectangular, round, cylindrical, and contoured products having a thickness or cross-sectional dimension greater than 0.5 inch (12.7 mm), using either contact or immersion methods, and using the longitudinal-wave or shear-wave modes or combinations of the two, as necessary. This specification may apply to testing finished machined parts provided the parts can meet the basic testability requirements, such as size, contour, metallurgical structure, and thickness.

AMS K Non Destructive Methods and Processes Committee

Steel, Bars, Forgings, Mechanical Tubing and Forging Stock 0.50Cr - 0.12Mo (0.89 - 1.01C)

AMS6476F (Current)

11/09/2021

This specification covers a low-alloy steel in the form of bars, forgings, mechanical tubing, and forging or tubing stock.

AMS E Carbon and Low Alloy Steels Committee

Inspection, Ultrasonic Product Over 0.5 Inch (12.7 mm) Thick

AMS2630E (Current)

11/09/2021

This specification covers procedures for ultrasonic inspection, by pulse-echo procedures, of flat, rectangular, round, cylindrical, and contoured products having a thickness or cross-sectional dimension greater than 0.5 inch (12.7 mm), using either contact or immersion methods, and using the longitudinal-wave or shear-wave modes or combinations of the two, as necessary. This specification may apply to testing finished machined parts provided the parts can meet the basic testability requirements, such as size, contour, metallurgical structure, and thickness.

AMS K Non Destructive Methods and Processes Committee

Innovating the methanol fuel cell

SAE-MA-0474611/08/2021

Using methanol as the source fuel provides an alternative to a gaseous-hydrogen distribution and storage infrastructure, among other potential benefits.

Lithium-free Corvette Z06: More sting for the 2023 Stingray

SAE-MA-0474110/29/2021

GM resurrects a legendary nameplate and stuffs it with an all-new flat-plane V8 to advance the Corvette’s cause.

Brake Lining Quality Test Procedure

J661_202110 (Current)

10/26/2021

The purpose of this SAE Recommended Practice is to establish a uniform laboratory procedure for securing and reporting the friction and wear characteristics of brake linings. The performance data obtained can be used for in-plant quality control by brake lining manufacturers and for the quality assessment of incoming shipments by the purchasers of brake linings.

Brake Linings Standards Committee

Low-Alloy Steel, Heat-Resistant, Bars, Forgings, Mechanical Tubing, and Forging Stock 0.95Cr - 0.55Mo - 0.30V (0.40 - 0.50C)

AMS6304N-TEST-REC (Historical)10/22/2021

This specification covers an aircraft-quality, low-alloy, heat-resistant steel in the form of bars, forgings, mechanical tubing, and forging stock.

AMS E Carbon and Low Alloy Steels Committee

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