Browse Topic: Manufacturing equipment and machinery

Items (212)
AS 6413 and slash sheets /1 & /2 hold the main information for testing of battery packaging. This document holds further information and expansion of philosophy, clarification etc. surrounding the testing and industry needs.
G-27 Lithium Battery Packaging Performance
A Process for Delivering Extreme AFP Head Reliability2019-01-13493/19/2019
Every now and then a good idea happens. The Modular head was a great idea and enabled the use of multiple types of AFP heads, ATL, ply cutting, part probing, etc. with the use of a single machine and machining cell. At the time the modular head was developed by Electroimpact circa 2004, the industry assumed (and accepted) that AFP was an unreliable process. It still isn’t as reliable as we’d like. One way of coping with this lack of reliability is to stage more than one head in the AFP cell so that a spare head of the exact same type is ready to jump into action if the head out on the floor has an issue. If the reliability of the AFP process were to increase 10x or 50x, would there still be a business case for the multiple AFP head system? The modular head may still win the day, but the metrics change. For instance, if there was only 20 minutes of down time for every head load, it may no longer be advantageous to have 2 heads of the exact same type in the cell. It is our goal to eliminate AFP process unreliability to the point where this discussion has real meaning. To address the #1 cause of reliability issues experienced in 777x we invented the Modular-Servo-Creel head. We built a full working prototype of this machine and demonstrated it to Boeing and others over the past year. What we learned was indeed we did fix the #1 cause of reliability issues that we see in production of the 777x spar (the loss of tension during large speed changes during the zero degree ply). In the process of using this head other causes for unreliability also came into view. They actually had nothing to do with the theory of operation of the head as we previously experienced with the old creel system, but more to do with preparation. These items are: Head Cleanliness Blade Sharpness A valve that is failing or leaking A seal that is worn or leaking A spring plate that failed Each of these items caused an error on a part that we were trying to make and diagnosis took longer than acceptable causing even more issues on the part until the correct diagnosis and remedy was made. Because we identified these items as potential causes of mistakes on the part, we created a system described in detail in this paper. This section describes a process and method for cleaning the AFP head using a dishwasher, a method for checking blade sharpness and finally a method for checking the module functionality. We demonstrate this this system running our prototype AFP head building 16 plys of the 50’ spar, some stringer charges and then a hexagonal test part placing 100,000 individual tow strips without a process error, not even a slipped tow.
Rudberg, ToddCemenska, JoshuaSherrard, Ethan
Improving Manufacturing Efficiencies through Industry 4.0 Technologies in Aerospace2018-01-192910/30/2018
1 In the age of 4th industrial revolution, operational and information technologies are increasingly getting converged to help organizations improve their topline through new innovative products and services, and improve bottom line by improving efficiencies. This transformation is driven by convergence of many advanced technologies such as advanced sensor and communication technologies, big data, advanced analytics, Artificial Intelligence (AI), robotics, additive manufacturing, virtual and augmented reality (VR/AR). Enterprises digitization journey continues to adopt advanced technologies through multi-pronged approach to achieve their near-term and long-term goals. This paper summarizes Industry 4.0 journey, its relevance and applications to aerospace. It also summarizes how Industry 4.0 concepts can be applied to a composite manufacturing shop floor of aerospace components, how effective convergence of IoT, analytics, machine learning, AI and AR/VR help in improving the overall efficiency, reliability, availability and quality of the manufacturing shop floor by monitoring real time data to evaluate the overall performance of manufacturing plant “As Designed” Vs “As Operated” quantifying the business value.
Veluri, SastryKumar, RaviVasudevan, RamjiGorur, Ravi PrakashNampuraja, EnoseShankaraiah, MaheshTanjore, SimhaRao, Shama
Vibration Assisted Drilling on Automated Drilling Units: Challenges, Dynamic Modelization and Prospective Developments2016-01-20979/27/2016
The Vibration Assisted Drilling (VAD) process has been implemented in Automated Drilling Equipment (ADE) on an industrial scale since 2011. Today more than 11000 ADEs are currently used on aircraft assembly lines. As well as drawing up a short report on the use of this new process, the authors make an assessment on new challenges that VAD has to face up. Indeed production rates are increasing and ADE manufacturers improve their technologies, one of the most recent and major development concerning the electrical motorization of the machines. These evolutions are as many opportunities for the VAD provided you have a clever understanding as well as an expert knowledge of the process. Thus the authors propose a new dynamic model of the whole VAD system which integrates the behavior of the part, cutting tool/material pair and the machine. The confrontation of model results and experimental validation tests demonstrates the relevance of the works. On this basis the authors detail some perspective of ADE process of tomorrow in terms of implementation technologies, parameters settings or even cutting tool optimization. They also show the interest of a smart connection between this new model and the Mitis database which is fed for ten years by monitored VAD tests.
Laporte, SylvainDe Castelbajac, CosmeLadonne, Mathieu
An Attempt for an Industry 4.0 Inspired Cloud-Supported Approach for Predictive Maintenance on the Example of Refill Friction Stir Spot Welding (RFSSW)2016-01-21259/27/2016
This paper presents an approach to how existing production systems can benefit from Industry 4.0 driven concepts. This attempt is based on a communication gateway and a cloud-based system, that hosts all algorithms and models to calculate a prediction of the tool wear. As an example we will show the Refill Friction Stir Spot Welding (RFSSW), a solid state joining technique, which is examined at the Institute of Production Engineering (LaFT) of the Helmut-Schmidt-University, University of the Federal Armed Forces Hamburg, for years. RFSSW is a sub-section of friction welding, where a rotating tool that consists out of three parts is used to heat up material to a dough-like state. Since Refill Friction Stir Spot Welding produces a selective dot-shaped connection of overlapping materials, the production requirements are similar to riveting or resistance spot welding. In contrast to other bonding techniques, Refill Friction Stir Spot Welding can be integrated within the production process without major interferences or changes. At the LaFT we build a prototype from which we collected a big amount of data which we are now trying to analyze with methods that are known from the Industrie 4.0. For the Industry 4.0 idea, the production environment respectively the welding equipment acts like an Internet of things device, that publishes its data to the cloud and retrieves a calculated result.
Hameister, Henry
End-Effector for Automatic Shimming of Composites2016-01-21119/27/2016
Gaps in composite structures are a risky factor in aeronautical assemblies. For mechanically joined composite components, the geometrical conformance of the part can be problematic due to undesired or unknown re-distribution of loads within a composite component, with these unknowns being potentially destructive. To prevent unnecessary preloading of a metallic structure, and the possibility of cracking and delamination in a composite structure, it is important to measure all gaps and then shim any gaps greater than 127 microns. A strategy to overcome the high relative tolerances for assemblies lies in the automated manufacturing of shims for the gaps previously predicted through the evaluation of their volumes via a simulation tool. This paper deals with the development of a special end-effector prototype to enable the shimming of gaps in composites structures using a pre-processed geometry. The aim of this end-effector is to provide movement to a temperature controlled hot-end in order to generate a solid shim of ABS on the target composite surface. This process is defined according to the trajectories and velocities marked by the 3D printing process using standard G-code. The geometry and material volume to be printed are indicated by the simulated gap volume which is based on previous metrological measurements. The final objective will be to attach this end-effector to an anthropomorphic robot to enable autonomous manufacturing. This work is part of the EU FP7 funded LOCOMACHS project, under grant agreement n°314003.
Antolin-Urbaneja, Juan CarlosLivinalli, JuanPuerto, MildredLiceaga, MikelRubio, AntonioSan-Roman, AngelGoenaga, Igor
An often asked question from industrial machine builders or integrators is how they can effectively design or implement the conversion of a machine with servo technology to meet performance expectations. This is a specialized task filled with layers of complexity that can prove difficult to execute, even when the scope of work is fully understood.
Barriers to Entry in Automotive Production and Opportunities with Emerging Additive Manufacturing Techniques2016-01-03294/5/2016
Conventional car manufacturing is extremely capital and energy-intensive. Due to these limitations, major auto manufacturers produce very similar, if not virtually identical, vehicles at very large volumes. This limits potential customization for different users and acts as a barrier to entry for new companies or production techniques. Better understanding of the barriers for low volume production and possible solutions with innovative production techniques is crucial for making low volume vehicles viable and accelerating the adoption of new production techniques and lightweight materials into the competitive marketplace. Additive manufacturing can enable innovative design with minimal capital investment in tooling and hence should be ideal for low and perhaps high volume parts. For this reason, it was desired to evaluate potential opportunities in manufacturing automotive parts with additive techniques. Analysis of traditional processes was first performed to identify and quantify capital expenditure (CAPEX) barriers for low volume production of B-pillars, K-frames, HVAC assemblies, door inner trims and clutch housings. Review of emerging production techniques has shown promising potential in reducing CAPEX barriers by direct printing of K-frames and door trims as well as dies for metal and plastic parts. Key insights from the study include views on current performance of additive techniques compared to traditional processes and identified avenues for R&D advancements to improve their viability. This analysis is based on cost models developed under ARPA-E funding which use a consistent set of assumptions and repeatable framework to calculate the cost of fabrication and assembly of components.
Bubna, PiyushHumbert, Michael P.Wiseman, MarcManes, Enrico
Precision electroforming is an additive process in which two and three-dimensional (3D) microstructures are formed by electrochemically depositing metal into a precisely formed photoresist mold. Electroforming is ideal for fabricating micron-scale, metallic components, as well as for making injection molds used for forming non-metallic microstructures with nano-scale features.
Increasing Competitiveness and Sustainability in Structural Assembly by Using Friction Spot Welding2013-01-08354/8/2013
To join sheet metal made out of aluminium, riveting is common practice. This process contains several disadvantages. On the one hand, large, specially designed and cost-intensive machines are used within automation engineering. Normally, those tools are not reconfigurable and cannot be used for general purposes. On the other hand, adding the rivet to the structure also increases weight of the whole craft. The proposed method of friction welding addresses those limitations of riveting. At the Institute of Production Engineering, Helmut-Schmidt-University, research is conducted to provide a control assuring process reliability to perform friction welding fully automated as well as manually. Friction spot welding is a sub-section of friction welding, where a rotating tool that consists out of three parts is used to heat up material to a dough-like state. Since friction spot welding produces selective dot-shaped connections of overlapping materials, the production requirements are similar to riveting or resistance spot welding. In contrast to other bonding techniques, friction spot welding can be integrated within the production process without major interferences or changes. Another advantage of friction spot welding is the simple process operation. Friction spot welding only requires one operation. Processing time and expenses are therefore reduced.
Hameister, Henry
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