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Advances In Composite Manufacturing Of Helicopter Parts, Tobias A. Weber, Hans-Joachim K. Ruff-Stahl 2017 Embry-Riddle Aeronautical University

Advances In Composite Manufacturing Of Helicopter Parts, Tobias A. Weber, Hans-Joachim K. Ruff-Stahl

International Journal of Aviation, Aeronautics, and Aerospace

This study investigates and compares different methods for improving standard autoclave composite manufacturing in order to find suitable approaches to a more efficient composite production. The goal is not only a reduction in manufacturing times and costs but also quality enhancement. Improved part quality while decreasing costs enables a manufacturer of composite parts to expand its market share, especially in the helicopter market, which has been constantly shrinking over the last two years. Various approaches such as improved tooling technology, the use of automated systems for lamination as well as outsourcing are examined to provide an overview of possible advancements ...


Quality Improvement In Drilling Silicon By Using Micro Laser Assisted Drilling, Barkin Bakir 2017 Western Michigan University

Quality Improvement In Drilling Silicon By Using Micro Laser Assisted Drilling, Barkin Bakir

The Hilltop Review

The micro-laser assisted drilling (µ-LAD) of monocrystalline silicon (100), using a diamond cutting tool coupled with a laser, was tested in order to improve the cutting edge quality of a drilled samples. The laser beam is transmitted through an optically transparent diamond drill bit and focused precisely at the tool-workpiece interface, where the material is under high pressure induced by the diamond tool. The influence of the laser power on the quality and the inner surface finish of the drilled materials is investigated. Different laser powers were used to carry out the experiments. The experimental results indicated that the µ-LAD ...


Solar Car Suspension System, Alex Power, Adam O'Camb 2016 California Polytechnic State University, San Luis Obispo

Solar Car Suspension System, Alex Power, Adam O'Camb

Mechanical Engineering

No abstract provided.


Fiber Glass Mat Splice Automation, Max Weinstein, Charles Scott Forbes, Max Kilpatrick 2016 California Polytechnic State University, San Luis Obispo

Fiber Glass Mat Splice Automation, Max Weinstein, Charles Scott Forbes, Max Kilpatrick

Mechanical Engineering

Currently, GAF has two operators manually splice together each roll of fiberglass mat. To save money and resources, GAF wants to automate this splicing process. Our team is responsible for stage 3 of 5 in this automation process. We are responsible for ensuring that the system is able to move autonomously to the necessary positions required for splicing together the rolls of fiberglass mat. We have determined the best solution for accomplishing this movement is to use linear slide actuators. This document will describe the process by which we arrived at our solution, the details of our solution, and a ...


Revolutionized Additive Manufacturing, Matthew Walker, Winthrop Townsend, Luca Fuller 2016 California Polytechnic State University, San Luis Obispo

Revolutionized Additive Manufacturing, Matthew Walker, Winthrop Townsend, Luca Fuller

Mechanical Engineering

No abstract provided.


Final Design Report: Polymer Fatigue Characterization Test Method, Wyatt Ayling, Tyler Price, Brandon Stell, Michela Upson 2016 California Polytechnic State University, San Luis Obispo

Final Design Report: Polymer Fatigue Characterization Test Method, Wyatt Ayling, Tyler Price, Brandon Stell, Michela Upson

Mechanical Engineering

Polylogix is a team dedicated to the design, build, and testing of a fatigue machine to simulate cyclic loading on a biomedical polymer. This project is sponsored by Endologix, Inc. to provide test data characterizing mechanical material properties of various formulations of polymer used in abdominal aortic aneurysm surgeries. With this project goal, the machine must be able to test the polymer at body conditions; these include a testing temperature of 37°C and a cycling frequency ranging from 1 Hz to 10 Hz. This report proposes the following solution to this design challenge: an AC motor-driven mechanism utilizing a ...


Compression Molded Composite Component, Greg Hermansen, Larsson Johnson, Joanne Medrano, Kyle Hammell 2016 California Polytechnic State University, San Luis Obispo

Compression Molded Composite Component, Greg Hermansen, Larsson Johnson, Joanne Medrano, Kyle Hammell

Mechanical Engineering

The following final design report outlines the design and fabrication of a carbon fiber compression molded sunglasses case. It intends to guide the development of a future lab activity for a composites undergraduate course at Cal Poly – San Luis Obispo. The activity aims to support an educational investigation in "out-of-autoclave" composites manufacturing methods, such as compression molding, which offer some key benefits over autoclave molding. The methodology behind the creation of a conceptual design, an initial prototype, and a final product is laid out in detail below.


Microstructure And Properties Of Spark Plasma Sintered Moalb Ceramics, Ting Lou 2016 University of Nebraska-Lincoln

Microstructure And Properties Of Spark Plasma Sintered Moalb Ceramics, Ting Lou

Mechanical (and Materials) Engineering -- Dissertations, Theses, and Student Research

Molybdenum aluminum boride (MoAlB) is a ternary transition metal boride which has promising aeronautic and nuclear applications. It inheres excellent properties of the binary transitional metal borides (e.g., MoB, ZrB2) such as high melting temperature, high hardness, and thermal conductivity. Besides, MoAlB is superior to MoB because: (1) the Al element provides an oxidation resistance at high temperatures; (2) its nanolaminated structure consisting of M-B layers with alternating Al layers results in a unique damage tolerance property. In this research, polycrystalline MoAlB have been successfully synthesized and simultaneously sintered using spark plasma sintering (SPS) from molybdenum boride (MoB ...


Automated Machine Tender, Ryan A. Canfield, Samuel N. Adler, Louis S. Roseguo 2016 California Polytechnic State University, San Luis Obispo

Automated Machine Tender, Ryan A. Canfield, Samuel N. Adler, Louis S. Roseguo

Mechanical Engineering

The use of CNC (Computerized Numerical Control) machines automate production in factories through programs controlling manual operations such as milling or lathing. The manufacturing process can be automated beyond the use of CNC machines through the addition of a robotic tender capable of carrying out the same tasks as a human operator. A tender can be integrated into the CNC machine itself, or purchased separately and configured to autonomously operate a particular machine. Smaller companies making limited production runs may not find it economically feasible to purchase large scale integrated machine tenders, but would benefit from a versatile autonomous machine ...


Book Review, Suzanne B. Watson 2016 University of New Hampshire

Book Review, Suzanne B. Watson

RISK: Health, Safety & Environment

Review of the book: HELENA SZEJNWALD BROWN, ET AL., CORPORATE ENVIRONMENTALISM IN A GLOBAL ECONOMY: SOCIETAL VALUES IN INTERNATIONAL TECHNOLOGY TRANSFER. (Quorum Books 1993) [264 pp.] Acknowledgments, bibliography, figures, index, tables. LC 92- 19851; ISBN: 0-89930-802-3. [$49.95. P.O. Box 5007, Westport CT 06881.]


Novel Closed-Loop Control Strategy For Inkjet-Based Additive Manufacturing System, Yunong Shi, Chunsheng Ye 2016 Huazhong University of Science and Technology

Novel Closed-Loop Control Strategy For Inkjet-Based Additive Manufacturing System, Yunong Shi, Chunsheng Ye

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


A Coupled Finite Element-Free Galerkin Method For Simulating Viscous Pressure Bulging, Chunjun Dai 2016 Harbin Institute of Technology

A Coupled Finite Element-Free Galerkin Method For Simulating Viscous Pressure Bulging, Chunjun Dai

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Simulation Of Superplastic Forming Of Circular Edge-Welded Envelopes, Olga Tulupova 2016 Ufa State University of Oil & Petroleum

Simulation Of Superplastic Forming Of Circular Edge-Welded Envelopes, Olga Tulupova

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


A Parallel 3d Phase-Field Simulation Of Multi-Grain Growth Based On The Full Thread Tree, Ya-jun Yin, Min Wang, Jian-xin Zhou, Dun-ming Liao, Xu Shen, Tao Chen 2016 Huazhong University of Science and Technology

A Parallel 3d Phase-Field Simulation Of Multi-Grain Growth Based On The Full Thread Tree, Ya-Jun Yin, Min Wang, Jian-Xin Zhou, Dun-Ming Liao, Xu Shen, Tao Chen

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Simulation Investigation Of Temperature Distribution In Large Aluminium Panel During Autoclave Age Forming Process, Yongqian Xu 2016 Central South University

Simulation Investigation Of Temperature Distribution In Large Aluminium Panel During Autoclave Age Forming Process, Yongqian Xu

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Numerical And Experimental Characterization Of Material Flow In Forged Aluminum Wheel, Jong-Ning Aoh, Ming-Chiu Li, Chong-Jin Li 2016 National Chung Cheng University

Numerical And Experimental Characterization Of Material Flow In Forged Aluminum Wheel, Jong-Ning Aoh, Ming-Chiu Li, Chong-Jin Li

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Simulation Of Two Kinds Of Hot Stamping Processes Of Ultra High-Strength Steel, Hao Zhao, Zhongwen Xing, Hongliang Yang 2016 Harbin Institute of Technology

Simulation Of Two Kinds Of Hot Stamping Processes Of Ultra High-Strength Steel, Hao Zhao, Zhongwen Xing, Hongliang Yang

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Research On The Impact Of Geometric Parameter On The Cross-Section Precision In Rotary Draw Bending Of High-Strength Steel Tube With Rectangular Section, Hongliang Yang, Zhongwen Xing, Zhao Hao 2016 Harbin Institute of Technology

Research On The Impact Of Geometric Parameter On The Cross-Section Precision In Rotary Draw Bending Of High-Strength Steel Tube With Rectangular Section, Hongliang Yang, Zhongwen Xing, Zhao Hao

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Ultrasonic Denoising Technique For Defect Detection In Austenitic Steel Weldment, Dazhao Chi, Chengle Mai, Tie Gang 2016 Harbin Institute of Technology

Ultrasonic Denoising Technique For Defect Detection In Austenitic Steel Weldment, Dazhao Chi, Chengle Mai, Tie Gang

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Weld Thermal Simulation Of Crmov With Pwht In Type Iv Region, Bin Xu 2016 Southwest University of Science and Technology

Weld Thermal Simulation Of Crmov With Pwht In Type Iv Region, Bin Xu

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


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