Browse Topic: Cutting

Items (513)

Design, Fabrication, and Analysis of Vertical Press Cut Machine

2022-28-048311/18/2022

This study involves the design, fabrication, and analysis of a vertical press-cut machine (henceforth machine*) to cut wooden plates of 1mm thickness to directly produce an output of the required shape and dimension in one press. The aim is to manufacture a machine that could be portable, cost less (also includes operating costs and labor costs) and be able to produce outputs of any dimensions and shapes. This machine operates on the principle of slider crank mechanism which utilizes a slider, a connecting rod, and a crank. The necessary punch force required in this study to shear a wooden plate of 1mm thickness completely, is 3198 N. This necessary downforce is achieved by fabricating a die of mass 2kg with Mild Steel material and attaching 4 stainless steel blades (total mass = 0.68 kg) with 2mm allowance to the die using eight 12mm bolts. This die is bolted (8mm diameter) to a mild steel plate (150*60*6: l*b*t) which acts as the connecting rod in this setup, which is then bolted

S, Ravindran, Renganathan, Srikanth, D, Venkatragavan, S, Sundar, R, Steephan Raj, Sadhasivam, Navin

Novel study on Elastic recuperation of Titanium (grade 5) alloy during machining

2022-26-116705/26/2022

Machining is the process of removing material from a workpiece, in the form of chips, to obtain the final part in its desired shape and size. Various aerospace materials such as Aluminum, Steel, Titanium etc. can be mainly shaped through machining process. Titanium alloys also find larger adoption in areas like Bio-medical and Automotive mainly because of their inherent high specific strength and consistent corrosion resistance. Machining Ti-6Al-4V (grade 5) has been difficult due to a number of its characteristics like poor conductivity of heat, strong and undesirable chemical reactivity with cutting tool materials at operating/ cutting temperature, it’s work hardening characteristics and very low modulus of elasticity. Due to low modulus of elasticity, the elastic recovery or recuperation of thin-walled Titanium grade 5 parts that occur after machining is an important topic/issue to be addressed since it has greater effect on the work piece surface quality, cutting tool wear and the

Acharya, Nishanth R.

SAE TOMORROW TODAY: Empowering Superheroes: Emergency eVTOL Aircraft from Start-Up Jump Aero

1317311/28/2021

In emergency situations, every second counts - but long distances to rural areas and congested city traffic often increase the time it takes to transport a patient to a hospital. Jump Aero is mobilizing eVTOL aircraft as a solution to cut emergency response time in half and save thousands of lives. Co-founders Carl Dietrich, President/Chief Designer, and Katerina Barilov, Head of Business Development, discuss their passion for the Jump Aero mission. Hear more about how electric aircraft can reduce the time it takes to get a responder on the scene, why their EMTs are required to learn how to fly an airplane, and how their commitment to engage with EMS communities builds partnerships and trust. Stay up to date on the latest news from Jump Aero: https://www.jumpaero.com/

Hineman, Marcie

CONNECTORS, ELECTRICAL, RECTANGULAR, RECEPTACLE, CRIMP CONTACTS (SINGLE INSERT, TYPE III, CLASS 1 (−65 TO +125 °C), SERIES 2, SHELL DESIGNATOR A)

AS81659/61B (Current)07/30/2021

AE-8C1 Connectors Committee

Assembly and Soldering Criteria for High Quality/High Reliability Soldering Wire and Cable Termination in Aerospace Vehicles

AS4461D-TEST-REC (Historical)07/23/2021

This standard is applicable to manual soldering and machine soldering processes utilizing controlled soldering devices, for electrical connections for wiring and cabling used in aerospace vehicles. Description of a component or device herein is not to be construed as authorizing the use of the component or device.

AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install

Assembly and Soldering Criteria for High Quality/High Reliability Soldering Wire and Cable Termination in Aerospace Vehicles

AS4461D (Current)

07/23/2021

This standard is applicable to manual soldering and machine soldering processes utilizing controlled soldering devices, for electrical connections for wiring and cabling used in aerospace vehicles. Description of a component or device herein is not to be construed as authorizing the use of the component or device.

AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install

Felling Head Terminology and Nomenclature

J1272_202103 (Current)

03/01/2021

This SAE Standard is intended to describe the basic types of felling heads, including those with bunching capabilities, that are attachments to a self-propelled machine. Only the major components that are necessary to describe the functions of the felling head, and to apply the principles of the standard are included. Illustrations used are not intended to include all existing felling heads or to describe any particular manufacturer’s variation.

MTC4, Forestry and Logging Equipment

Tips for Choosing CBN Grinding Wheels

TBMG-3822612/01/2020

When considering the use of CBN (cubic boron nitride) grains in an aerospace part grinding process, the first questions that come to mind may be associated with the grinding conditions and machine capabilities. It’s commonly assumed that CBN grinding wheels need very specific operating conditions that only a re-tooled or new machine can achieve. It’s also typical to think that those conditions are completely different from the ones used by conventional grinding wheels. However, depending on the bond system, some of the conditions may resemble those suitable for conventional wheels.

5 Ws of Slip-Resistant Shoe Coatings

TBMG-3747608/01/2020

Anyone walking on icy or slippery surfaces.

BAND INSTALLATION TOOL, HAND, ONE-STEP, FOR AS85049/128 CONNECTOR ACCESSORY CABLE SHIELD TERMINATING BANDS

AS81306/1C (Current)04/22/2020

AE-8C2 Terminating Devices and Tooling Committee

Experimental Investigation of Axial Cutting of AA6061 Extrusions under a Tension Deformation Mode

2020-01-020604/14/2020

A plethora of applications in the transportation industry for both vehicular and roadside safety hardware, especially seatbelts, harnesses and restraints, rely on tensile loading to dissipate energy and minimize injury. There are disadvantages to the current state-of-the-art for these tensile energy absorbers, including erratic force-displacement responses and low tensile force efficiencies (TFE). Axial cutting was extensively demonstrated by researchers at the University of Windsor to maintain a stable reaction force, although exclusively under compressive loading. A novel apparatus was investigated in this study which utilized axial cutting under a tensile loading condition to absorb energy. A parametric scope was chosen to include circular AA6061 extrusions in both T4 and T6 temper conditions with an outer diameter of 63.5 mm and wall thickness of 3.18 mm. The experiments were performed quasi-statically utilizing a custom, hydraulically powered long stroke tension/compression

Gudisey, Anthony, Altenhof, William, Magliaro, John

Advances in Drilling with PCD (Polycrystalline Diamond)

2020-01-003503/10/2020

PCD properties were optimized to drill stacks of CFRP/Ti using an accelerated wear test milling gray cast iron. The optimized PCD was then used to prepare PCD drills. Tests were made to determine the best drilling conditions for the optimized PCD. The results yielded a significant improvement in cycle times as compared to earlier studies using PCD drills. Notched PCD cutting edges were found to eliminate oversizing of the CFRP near the interface of the two materials.

Bunting, Jeremy, Bunting, John

Advances in Drilling with PCD (Polycrystalline Diamond)

2020-01-003503/10/2020

PCD properties were optimized to drill stacks of CFRP/Ti using an accelerated wear test milling gray cast iron. The optimized PCD was then used to prepare PCD drills. Tests were made to determine the best drilling conditions for the optimized PCD. The results yielded a significant improvement in cycle times as compared to earlier studies using PCD drills. Notched PCD cutting edges were found to eliminate oversizing of the CFRP near the interface of the two materials.

Bunting, Jeremy, Bunting, John

Cutting Edge - Double Bevel Cross Sections

J738_202001 (Current)01/15/2020

This standard is for cutting edge sections typically used in earth-moving machinery defined in SAE J1116 and ISO 6165: a Scrapers as defined in ISO 7133. b Dozers as described in ISO 6747. c Loaders as described in ISO 7131. d Graders as described in ISO 7134. Hole spacing is defined ISO 7129. Hole conformation is defined in SAE J740.

MTC1, Earthmoving Machinery

Influence of cutting fluid on reliability of threaded fastener joints

2019-01-230012/19/2019

This study reports on the effect of cutting fluids on friction behavior of the threaded fasteners. Underhead and thread friction are measured during tightening process of the hex-head threaded fasteners coated with different zinc-based coatings: electroplated zinc, zinc flake, and electroplated zinc nickel, commonly used in the automotive industry. The tests and data analysis are conducted considering ISO 16047 as a baseline. Test conditions are set close to the actual production conditions found in the motor vehicle industry. Water-based and ester-based cutting fluids are selected to unveil their impact on the reliability of the threaded fastener joints. It is shown that a change in the underhead interface conditions from dry to lubricated drastically reduces friction for the electroplated zinc and zinc nickel coatings.

Kumar, Mayank, Persson, Erik, Glavatskih, Sergei

Reducing Risk with Geometric Transition Extrusion

TBMG-3549811/01/2019

In an effort to design smaller, more intricate and complicated medical devices without running afoul of increasingly stringent national and international regulations, many designers are looking to geometric transition extrusions manufactured of high consistency rubber (HCR) silicone. This process reduces total cost of ownership for the original equipment manufacturer while improving part quality and greatly enhancing the types of devices being sought by healthcare providers.

Improvement of Mechanical Properties, and Optimization of Process Parameters of AISI 1050 Spheriodized Annealed Steel by Ranking Algorithm

2019-28-014310/11/2019

AISI 1050 is used in the production of landing gear, actuators and other aerospace components but their application is limited due to machinability of the material. In any metal cutting operation the features of tools, input work materials, machine parameter settings will influence the process efficiency and output quality characteristics. A significant improvement in process efficiency may be obtained by process parameter optimization that identifies and determines the regions of critical process control factors leading to desired outputs or responses with acceptable variations ensuring a lower cost of manufacturing. This experimental study elucidates the problems and machinability issues like failure of tools and accuracy are found while machining and less output in machining. In the present study of spherodizing heat treatment of AISI 1050 was investigated during the turning operation in CNC lathe, under the consideration of several turning process parameters. The microstructures of

Loganathan, Ganesh Babu, Kumaran, Durai, Sivam Sundarlingam Paramasivam, Sundar Singh, Saravanan, Krishnaswamy, Rajendran, Raj

Steel, Corrosion-Resistant, Bars, Wire, Forgings, Mechanical Tubing, and Rings 16Cr - 4.0Ni - 0.30Cb Nb) - 4.0Cu Solution Heat Treated, Precipitation Hardenable

AMS5643W09/24/2019

This specification covers a corrosion-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash welded rings up to 8.0 inches (203 mm) in diameter or least distance between parallel sides, and stock of any size for forging, flash welded rings, or heading (see 8.8).

AMS F Corrosion Heat Resistant Alloys Committee

Wood-Based Technology Creates Electricity from Heat

TBMG-3460806/01/2019

Researchers have transformed a piece of wood into a flexible membrane that generates energy from the same type of electric current (ions) on which the human body runs. This energy is generated using charged channel walls and other unique properties of the wood’s natural nanostructures. With this new wood-based technology, a small temperature differential can be used to efficiently generate ionic voltage.

Snake-Inspired Robot

TBMG-3457206/01/2019

Researchers have developed a new and improved snake-inspired soft robot that is faster and more precise than its predecessor.

Rhombohedron Epitaxial Growth with Molten Target Sputtering (MTS) at 500 °C Substrate Temperature

TBMG-3438005/01/2019

This invention applies to the field of sputtering, depositing SiGe thin films on sapphire substrates. It is a method of modifying the film growth front, enabling epitaxially grown heterostructure devices at lower temperatures and with higher purity, avoiding the conventional time required (2 hours) and high-energy-consumption thermal soaking at a high temperature (800 °C.) Less than 500 °C is enough to grow the single-crystal Si1-xGex (x=0.85) film because much higher-kinetic-energy molecules reach the substrate.

Heat Treatment of Wrought Aluminum Alloy Parts

AMS2770P (Historical)04/08/2019

This specification specifies the engineering requirements for heat treatment, by part fabricators (users) or their vendors or subcontractors, of parts (see 8.6.1). It also covers heat treatment by warehouses or distributors converting raw material from one temper to another temper (see 1.3 and 8.5). It covers the following aluminum alloys: 1100, 2014, 2017, 2024, 2098, 2117, 2124, 2195, 2219, 2224, 3003, 5052, 6013, 6061, 6063, 6066, 6951, 7049, 7050, 7075, 7149, 7178, 7249, 7475

AMS D Nonferrous Alloys Committee

Estimation of Cutting Parameters in Two-Stage Piercing to Reduce Edge Strain Hardening

2019-01-109204/02/2019

Edge fracture is a common problem when forming advanced high strength steels (AHSS). A particular case of edge fracture occurs during a collar forming/hole extrusion process, which is widely used in the sheet metal forming industry. This study attempts to relate the edge stretchability in collar forming to the strain hardening along the pierced edge; thus, Finite Element (FE) simulations can be used to reduce the number of experiments required to improve cutting settings for a given material and thickness. Using a complex-phase steel, CP-W 800 with thickness of 4.0 mm, a single-stage piercing operation is compared with a two-stage piercing operation, so called shaving, in terms of strains along the pierced edge, calculated by FE simulation. Results indicated that strains were reduced along the pierced edge by shaving. These results are correlated with experimental observations made at the Technical University of Munich (TUM) where better hole expansion ratios (HERs) were obtained using

Diaz-Infante, David, Narayanan, Advaith, Altan, Taylan

Low-Cost Sensors Have High Impact on Productivity

TBMG-3402603/01/2019

An intelligent, low-cost tooling insert, embedded with smart sensors, has been developed to deliver in-process condition monitoring that reduces machining stoppages and improves productivity for manufacturers.

High-Consistency Rubber Provides Versatility for Medical Device Manufacturing

TBMG-3400103/01/2019

With more insight about the characteristics of this versatile silicone material, medical device manufacturers can better understand potential applications and considerations for selecting and using high-consistency rubbers in medical devices.

19AUTP02_0502/01/2019

Brooke, Lindsay

CUTTING TOOL (MINIATURE) ELECTRICAL, WIRE CUTTING, HAND ACTUATED, TYPE 1, WIRE SIZES 26 THROUGH 16

AS6173/1A (Current)01/07/2019

AE-8C2 Terminating Devices and Tooling Committee

Acceptance Criteria - Magnetic Particle, Fluorescent Penetrant, and Contrast Dye Penetrant Inspection

AS3071C (Current)10/26/2018

To establish the acceptance criteria for discontinuities as revealed by magnetic particle or liquid penetrant examination of aircraft utility parts as in 1.2.

E-25 General Standards for Aerospace and Propulsion Systems

Steel Castings, Vacuum Melted, Vacuum Cast, Investment, Corrosion-Resistant 13Cr - 8.0Ni - 2.2Mo - 1.1Al (195 ksi (1344 MPa) Tensile Strength (Condition H1000) Homogenized, Solution, and Precipitation Heat Treated

AMS5412A (Historical)10/10/2018

This specification covers a corrosion-resistant steel in the form of investment castings.

AMS F Corrosion Heat Resistant Alloys Committee

Forgings, Steel For Aircraft/Aerospace Equipment

AMS6400 (Historical)09/21/2018

This specification establishes requirements for steel forgings of any shape or form from which finished parts are to be made (See 8.2, 8.3, & 8.4). This specification covers steel forgings suitable for use in the construction of aircraft/aerospace equipment

AMS E Carbon and Low Alloy Steels Committee

Improving Hole Expansion Ratio by Parameter Adjustment in Abrasive Water Jet Operations for DP800

05-11-03-002309/17/2018

The use of Abrasive Water Jet (AWJ) cutting technology can improve the edge stretchability in sheet metal forming. The advances in technology have allowed significant increases in working speeds and pressures, reducing the AWJ operation cost. The main objective of this work was to determine the effect of selected AWJ cutting parameters on the Hole Expansion Ratio (HER) for a DP800 (Dual-Phase) Advanced High-Strength Steel (AHSS) with s0 = 1.2 mm by using a fractional factorial design of experiments for the Hole Expansion Tests (HET). Additionally, the surface roughness and residual stresses were measured on the holes looking for a possible relation between them and the measured HER. A deep drawing quality steel DC06 with s0 = 1.0 mm was used for reference. The fracture occurrence was captured by high-speed cameras and by Acoustic Emissions (AE) in order to compare both methods. Results indicated that using, regardless of the material, a small standoff distance, high water pressure, and

Yilkiran, Deniz, Wölki, Kai, Hübner, Sven, Diaz-Infante, David, Altan, Taylan

Development of friction coefficient controller for E-coat (KTL)

2018-36-020009/03/2018

Global competitiveness increase in the past decades has been a crucial factor for the technological advance and industrial automotive development. Possibility of reducing costs, concentrate knowledge and increase in manufacturing efficiency has lead to development of global automotive platforms. In this scenario, the supply chain needs for adaptations that allow evolution at the same fastness imposed by original equipment manufacturer (OEM). Such demands reflect directly on the fasters market requiring lighter and stronger products. Stronger products are obtained by increasing corrosion resistance and lowering friction coefficient, in order to increase the clamp load and, consequently, reduce the weight without reducing performance. However, increasing corrosion resistance causes, generally, an increase in friction coefficient and, consequently, a decrease in clamp load. To minimize such effects, the surface coating industry has been developing, over the years, friction controllers

Egêa, Renan Barranqueiro, Primolini, Alexandre, Maia, Bruno Inácio da

Acceptance Criteria for Nuts - Magnetic Particle, Fluorescent Penetrant, and Visible Penetrant Examination

AS5447 (Current)08/23/2018

This standard establishes the acceptance criteria for surface discontinuities as revealed by magnetic particle or liquid penetrant examination of nuts.

E-25 General Standards for Aerospace and Propulsion Systems

GASKET – ENGINE ACCESSORY DRIVE SQUARE, 127.28 BC, METRIC

MA3471A (Current)07/25/2018

E-25 General Standards for Aerospace and Propulsion Systems

Molten Target Sputtering (MTS) Deposition

TBMG-2970607/01/2018

The sputtering process has emerged as one of the major deposition techniques for thin film coating practices in research and industrial production. The process is limited by low deposition rates and low kinetic energy of the sputtered atoms. This not only slows the time required to sputter a film, but lowers the purity of the sputtered film.

Precision CNT Cutting Mechanism

TBMG-2902306/01/2018

NASA Langley Research Center has developed a simple mechanism for the clean cutting of high-strength and high-toughness carbon nanotube/poly-mer fiber composites on demand without high blade wear or replacement rates, and related high costs. The cutter is comprised of a set of blades both to score through any resin coating the fibers, and to provide an electrical current to cut through the fiber/composite reinforcement and any remaining resin in yarns, tapes, and sheets.

Heat Treatment of Steel Parts General Requirements

AMS2759F (Historical)04/28/2018

This specification establishes general requirements for the processes listed in 3.8.1 for heat treatment of steel parts (see 8.2.1) by users or their vendors or subcontractors.

AMS E Carbon and Low Alloy Steels Committee

RDI Laser Blanking Systems

1186404/26/2018

The RDI Laser Blanking Systems is a patented technology that combines nonstop coil feeding with high power fiber laser. Ideal for cutting metal, our innovative system reduces the cost-per-part, utilizes a variety of material, eliminates die and die maintenance, and increases material savings while reducing scrap, labor and material handling costs.

GASKET – TYPE XIX ENGINE ACCESSORY DRIVE

AS100007D (Current)04/19/2018

E-25 General Standards for Aerospace and Propulsion Systems

Carbon Fiber/Epoxy Mold with Embedded Carbon Fiber Resistor Heater - Case Study

05-11-02-001104/07/2018

The article presents a complete description of the design and manufacturing of a Carbon Fiber/epoxy mold with an embedded Carbon Fiber resistor heater, and the mold performances in terms of its surface temperature distribution and thermal deformations resulting from the heating. The mold was designed for manufacturing aileron skins from Vacuum Bag Only prepreg cured at 135°C. The glass transition temperature of the used resin-hardener system was about 175°C. To ensure homogenous temperature of the mold working surface in the course of curing, the Carbon Fiber heater was embedded in a layer of a highly heat-conductive cristobalite/epoxy composite, forming the core of the mold shell. Because the cristobalite/epoxy composite displayed much higher thermal expansion than CF/epoxy did, thermal stresses could arise due to this discrepancy in the course of heating. Therefore, to lower these stresses, the Carbon Fiber/epoxy faces were separated from the cristobalite/epoxy core containing the

Czarnocki, Piotr, Boczkowska, Anna, Frączek, Wojciech, Chabera, Paulina, Kubis, Michał, Marjanowski, Jędrzej

Running Titanium and Other Exotic Metals at Faster Speeds

TBMG-2868504/01/2018

High-speed machining is typically used in medical equipment manufacturing where machinists often work with exotic alloys and harder metals like titanium.

Aluminum Alloy, Plate 8.1Zn - 2.3Mg - 1.0Cu - Zr (7449-T7651) Solution Heat Treated, Stress Relieved, and Overaged

AMS4250B (Historical)03/23/2018

This specification covers an aluminum alloy in the form of plate 0.250 to 2.50 inch (6.35 to 63.50 mm) inclusive, in nominal thickness (see 8.5).

AMS D Nonferrous Alloys Committee

Microextrusion Tubing Advances Help Push Medical Device Boundaries

TBMG-2852003/01/2018

Over the past five years, technological advances have enabled product applications for microextrusion to penetrate into the medical OEM arena. Simply speaking, micro now really means micro. Years ago, when an OEM was asking for micro tubing, they typically were looking for ranges between 0.060 and 0.100 in. OD with 2-4 lumens. Now micro range dimensions are down to 0.024 in. OD with up to 6 lumens, including an ID range as low as 0.003 in.

Aluminum Alloy, Plate (2297-T87) 2.8Cu - 1.5Li - 0.30Mn - 0.12Zr Solution Heat Treated, Stretched, and Artificially Aged

AMS4330C (Historical)

01/12/2018

This specification covers an aluminum alloy in the form of plate.

AMS D Nonferrous Alloys Committee

Aluminum Alloy, Plate (2297-T87) 2.8Cu - 1.5Li - 0.30Mn - 0.12Zr Solution Heat Treated, Stretched, and Artificially Aged

AMS4330C-TEST-REC (Historical)01/12/2018

This specification covers an aluminum alloy in the form of plate.

AMS D Nonferrous Alloys Committee

Aluminum Alloy, Plate (7140-T7651) 6.6Zn - 1.8Cu - 2.0Mg - 0.10Zr Solution Heat Treated, Stress Relieved, and Overaged

AMS4408 (Historical)11/14/2017

This specification covers an aluminum alloy in the form of plate.

AMS D Nonferrous Alloys Committee

Compact, Portable Device for Structural Vibration Reduction

TBMG-2770110/01/2017

Tuned mass dampers are used worldwide to mitigate vibrations in structures like buildings and bridges where excessive movement can be alarming or even sickening to occupants. The vast majority are multi-ton devices that occupy an average of 1,000 square feet, and are complex and costly to install, tune, and maintain.

Toolholder Fit, Concentricity Key in High-Speed Machining

TBMG-2774410/01/2017

Machinists know that when it comes to precision machining, the importance of a toolholder cannot be overstated. The quality of the toolholder plays an even greater role when precision machining at higher speeds. High-speed machining is typically used in medical equipment manufacturing, where machinists often work with exotic alloys and harder metals like titanium.

Automated Riveting of C-130J Aft Fuselage Panels

2017-01-207509/19/2017

Electroimpact and Lockheed Martin have developed an automated drilling and fastening system for C-130J aft fuselage panels. Numerous design and manufacturing challenges were addressed to incorporate the system into Lockheed Martin’s existing manufacturing paradigm and to adapt Electroimpact’s existing line of riveting machines for manufacture of these legacy aircraft parts. Challenges to automation included design of a very long yet sufficiently rigid and lightweight offset riveting anvil for fastening around deep circumferential frames, automated feeding of very short, “square” rivets in which the length is similar to the head diameter, creation of part programs and simulation models for legacy parts with no existing 3d manufacturing data, and crash protection for the aircraft part from machine collisions, given the uncertainties inherent in the model and the unique geometry of the aircraft parts. Additional challenges were overcome in integrating the system into Lockheed Martin’s

Bigoney, Burton, Huddleston, Nicholas

On the Cutting Edge of Hearing Aid Research

TBMG-2748409/01/2017

In the United States, nearly 20 percent of the population is reportedly hearing impaired — although that figure could be higher because many people are reluctant to admit they have a hearing problem. Those who are treated rely on miniature and discreet hearing aid devices to improve their hearing, hence their quality of life. Significant R&D effort is required to bring a hearing instrument from a prototype stage to a marketable hearing aid device.

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