Download or read book A Thermomechanical Analysis of an Ultrasonic Bonding Mechanism written by Chunbo Zhang and published by . This book was released on 2011 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic experimental and numerical combined study of the thermomechanical bonding mechanisms in the ultrasonic welding (UW) process was conducted. A fully coupled thermomechanical finite element model has been built to fully understand the evolution and coupling between the in-process thermomechanical variables. The severe, localized, plastic deformation at the bond region is believed to be the major phenomenon for bond formation in ultrasonic welding. The influences of substrate dimensions on bond formation were studied and explained with an analytical vibration model. The formation of banded and cyclic stress-strain maxima in the substrate was found to be caused by superposition of vibrations. A push-pin type, combined experimental and numerical, method has been developed, validated, and applied to quantitatively determine the bond strength of UW parts. The best bond strength produced using the set of process parameters in this study was 75% of the ultimate tensile strength of the base material (Al3003-H18). Effects of UW parameters (normal pressure, vibration amplitude, and travel velocity) on bond strength have been characterized. Due to the weak vertical bond strength of UW parts, the pressurized post-weld heat treatment (PWHT) approach is originally proposed to improve the bond strength. The results show that the modified bond strength, up to 96% of the strength of the base material, can be achieved under the optimum parameters of 2.5 MPa pressure, 450 C temperature, and 1.5 h time.

Download or read book Ultrasonic Welding of Metal Sheets written by Susanta Kumar Sahoo and published by CRC Press. This book was released on 2020-11-18 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic Welding of Metal Sheets covers various aspects of ultrasonic welding (USW) of metal sheets, including the discussion on modeling and numerical simulations of ultrasonic welding to improve this welding process and performance. This book aims to provide an accessible, comprehensive and up-to-date exposition of the various aspects of joining of dissimilar metal sheets ranging from its fundamentals thorough to metallurgical characteristics covering fundamental concepts, in-detailed explanation about the USW including its implementation, design criteria, work material, welding, thermo-mechanical and research scopes. The book is aimed at researchers, professionals and graduate students in manufacturing, welding, mechanical engineering. Features The ultrasonic spot welding of various metal sheets is described in simplified expression and concepts are elucidated by relevant illustrations. Discusses modeling and numerical simulations of ultrasonic welding to improve the ultrasonic welding process and performance As opposed to competition in the market, this title provides thorough clarification of ultrasonic spot welding of metal sheets with its applications.

Download or read book Trends in Welding Research written by Stan A. David and published by ASM International. This book was released on 2009-01-01 with total page 833 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of the Applicability of Acoustic Emission and Vibration Analysis to Describe the Thermo mechanical Mechanism During Ultrasonic Metal Welding written by Elie Abi Raad and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of Mechanism of Ultrasonic Wire Bonding Process written by Dong Zhang and published by . This book was released on 2003 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Manufacturing Technologies written by Kapil Gupta and published by Springer. This book was released on 2017-04-29 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides details and collective information on working principle, process mechanism, salient features, and unique applications of various advanced manufacturing techniques and processes belong. The book is divided in three sessions covering modern machining methods, advanced repair and joining techniques and, finally, sustainable manufacturing. The latest trends and research aspects of those fields are highlighted.

Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Technical Note written by and published by . This book was released on 1972 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications of the National Institute of Standards and Technology Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1979 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1972 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalog of National Bureau of Standards Publications 1966 1976 pt 1 Citations and abstracts v 2 pt 1 Key word index A through L v 2 pt 2 Key word index M through Z written by United States. National Bureau of Standards. Technical Information and Publications Division and published by . This book was released on 1978 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications of the National Bureau of Standards Catalog written by United States. National Bureau of Standards and published by . This book was released on 1978 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Light Metals 2014 written by John Grandfield and published by Springer. This book was released on 2016-12-23 with total page 1351 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Light Metals symposia are a key part of the TMS Annual Meeting & Exhibition, presenting the most recent developments, discoveries, and practices in primary aluminum science and technology. Publishing the proceedings from these important symposia, the Light Metals volume has become the definitive reference in the field of aluminum production and related light metal technologies. The 2014 collection includes papers from the following symposia: •Alumina and Bauxite •Aluminum Alloys: Fabrication, Characterization and Applications •Aluminum Processing •Aluminum Reduction Technology •Cast Shop for Aluminum Production •Electrode Technology for Aluminum Production •Light-metal Matrix (Nano)-composites

Download or read book Publications of the National Bureau of Standards 1975 Catalog written by United States. National Bureau of Standards and published by . This book was released on 1976 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalog of National Bureau of Standards Publications 1966 1976 written by United States. National Bureau of Standards and published by . This book was released on 1978 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Joining Textiles written by I Jones and published by Elsevier. This book was released on 2013-01-24 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the techniques for joining fabrics together in a way that considers durability, strength, leak-tightness, comfort in wear and the aesthetics of the joints is critical to the production of successful, structurally secure fabric products. Joining textiles: Principles and applications is an authoritative guide to the key theories and methods used to join fabrics efficiently. Part one provides a clear overview of sewing technology. The mechanics of stitching, sewing and problems related to sewn textiles are discussed, along with mechanisms of sewing machines and intelligent sewing systems. Part two goes on to explore adhesive bonding of textiles, including principles, methods and applications, along with a review of bonding requirements in coating and laminating of textiles. Welding technologies are the focus of part three. Heat sealing, ultrasonic and dielectric textile welding are covered, as are laser seaming of fabrics and the properties and performance of welded or bonded seams. Finally, part four reviews applications of joining textiles such as seams in non-iron shirts and car seat coverings, joining of wearable electronic components and technical textiles, and the joining techniques involved in industrial and medical products including nonwoven materials. With its distinguished editors and international team of expert contributors, Joining textiles is an important reference work for textile product manufacturers, designers and technologists, fibre scientists, textile engineers and academics working in this area. Provides an authoritative guide to the key theories and methods used to efficiently join fabrics Discusses the mechanics of stitching and sewing and problems related to sewn textiles, alongside mechanisms of sewing machines, and intelligent sewing systems Explores adhesive bonding of textiles, including principles, methods and applications, along with a review of bonding requirements in coating and laminating of textiles

Download or read book Thermal Management Materials for Electronic Packaging written by Xingyou Tian and published by John Wiley & Sons. This book was released on 2023-12-12 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal Management Materials for Electronic Packaging Practical resource exploring the theoretical and experimental basis as well as solutions for the development of new thermal management materials for electronic packaging Thermal Management Materials for Electronic Packaging: Preparation, Characterization, and Devices provides in-depth and systematic summaries on cutting-edge thermal management materials for high-power density electronic devices, introducing the preparation methods and application scenarios of thermal management materials for electronic packing, covering refinements of thermal conductivity theory and performance prediction models for multiphase composites, and overall focusing on key scientific issues related to the subject, such as the internal interface of new high thermal conductive substrate materials and the mechanism of spatial topology on performance. The text also discusses key issues on the design and preparation of thermal conductive substrate materials with high thermal conductive properties, including their characterization, properties, and manipulation, as well as the latest methods, techniques, and applications in this rapidly developing area. Sample topics covered in Thermal Management Materials for Electronic Packaging include: Basic concepts and laws of thermal conduction, heat conduction differential equation and finite solution, and thermal conductivity of solids Definition and classification of electronic packaging, thermal management in electronic equipment, and requirements of electronic packaging materials Synthesis and surface modification of high thermal conductive filler and the synthesis of substrates and preparation of thermal conductive composites with inorganic ceramic skeleton structure Assembly of thermal conductive materials in different dimensions and preparation of composite materials, and reliability analysis and environmental performance evaluation Thermal Management Materials for Electronic Packaging serves as an ideal reference for researchers and workers in related fields to significantly improve the mechanical and thermal management properties of materials, expand the material selection and design margin of substrates, and develop substrates that meet the application needs of different gradients.