Download or read book Laser Welding of Plastics written by Rolf Klein and published by John Wiley & Sons. This book was released on 2012-09-19 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first detailed description in English of radiation and polymeric material interaction and the influences of thermal and optical material properties. As such, it provides comprehensive information on material and process characteristics as well as applications regarding plastic laser welding. The first part of this practical book introduces the structure and physical properties of plastics, before discussing the interaction of material and radiation in the NIR and IR spectral range. This is followed by an overview of the physical foundations of laser radiation and laser sources used for plastic welding. The third part describes the main processes of laser welding thermoplastics, as well as possibilities of process control, design of joint geometry, material compatibilities and adaptation of absorption of plastics to NIR radiation. Finally, the author explains applications of laser welding plastics using several industrial case studies from the automotive industry, household goods, and medical devices. Tailored to the needs of everyone dealing with laser welding of plastics, especially engineers in packaging, component manufacturing, and the medical industry.
Download or read book Handbook of Laser Welding Technologies written by S Katayama and published by Elsevier. This book was released on 2013-06-30 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser welding is a rapidly developing and versatile technology which has found increasing applications in industry and manufacturing. It allows the precision welding of small and hard-to-reach areas, and is particularly suitable for operation under computer or robotic control. The Handbook of laser welding technologies reviews the latest developments in the field and how they can be used across a variety of applications. Part one provides an introduction to the fundamentals of laser welding before moving on to explore developments in established technologies including CO2 laser welding, disk laser welding and laser micro welding technology. Part two highlights laser welding technologies for various materials including aluminium and titanium alloys, plastics and glass. Part three focuses on developments in emerging laser welding technologies with chapters on the applications of robotics in laser welding and developments in the modelling and simulation of laser and hybrid laser welding. Finally, part four explores the applications of laser welding in the automotive, railway and shipbuilding industries. The Handbook of laser welding technologies is a technical resource for researchers and engineers using laser welding technologies, professionals requiring an understanding of laser welding techniques and academics interested in the field. Provides an introduction to the fundamentals of laser welding including characteristics, welding defects and evolution of laser welding Discusses developments in a number of techniques including disk, conduction and laser micro welding Focusses on technologies for particular materials such as light metal alloys, plastics and glass
Download or read book Laser Welding of Plastics written by Rolf Klein and published by Wiley-VCH. This book was released on 2011-10-18 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first detailed description in English of radiation and polymeric material interaction and the influences of thermal and optical material properties. As such, it provides comprehensive information on material and process characteristics as well as applications regarding plastic laser welding. The first part of this practical book introduces the structure and physical properties of plastics, before discussing the interaction of material and radiation in the NIR and IR spectral range. This is followed by an overview of the physical foundations of laser radiation and laser sources used for plastic welding. The third part describes the main processes of laser welding thermoplastics, as well as possibilities of process control, design of joint geometry, material compatibilities and adaptation of absorption of plastics to NIR radiation. Finally, the author explains applications of laser welding plastics using several industrial case studies from the automotive industry, household goods, and medical devices. Tailored to the needs of everyone dealing with laser welding of plastics, especially engineers in packaging, component manufacturing, and the medical industry.
Download or read book Fundamentals and Details of Laser Welding written by Seiji Katayama and published by Springer Nature. This book was released on 2020-10-03 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly illustrated book presents the essential information and major constituents of laser welding, including laser brazing and laser-arc hybrid welding. Students, engineers, researchers, scientists, specialists, professors, consultants, designers, and executives worldwide will fully grasp the fundamentals, the present state, and the applications of laser welding. Welding phenomena, formation mechanisms and preventive procedures of welding defects, and process monitoring and adaptive control are especially emphasized, because understanding these aspects of laser welding greatly improves the performance of work and research and solves many problems in the field. Finally, the book shows how increasingly widespread use of a variety of materials is bringing major advances to laser welding.
Download or read book Handbook of Plastics Joining written by Michael J. Troughton and published by William Andrew. This book was released on 2008-10-17 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition of this bestselling reference provides fully updated and detailed descriptions of plastics joining processes, plus an extensive compilation of data on joining specific materials. The volume is divided into two main parts: processes and materials. The processing section has 18 chapters, each explaining a different joining technique. The materials section has joining information for 25 generic polymer families. Both sections contain data organized according to the joining methods used for that material. A significant and extensive update from experts at The Welding Institute A systematic approach to discussing each joining method including: process, advantages and disadvantages, applications, materials, equipment, joint design, and welding parameters Includes international suppliers’ directory and glossary of key joining terms Includes new techniques such as flash free welding and friction stir welding Covers thermoplastics, thermosets, elastomers, and rubbers.
Download or read book Principles of Laser Materials Processing written by Elijah Kannatey-Asibu, Jr. and published by John Wiley & Sons. This book was released on 2009-04-22 with total page 849 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coverage of the most recent advancements and applications in laser materials processing This book provides state-of-the-art coverage of the field of laser materials processing, from fundamentals to applications to the latest research topics. The content is divided into three succinct parts: Principles of laser engineering-an introduction to the basic concepts and characteristics of lasers, design of their components, and beam delivery Engineering background&-a review of engineering concepts needed to analyze different processes: thermal analysis and fluid flow; solidification of molten metal; and residual stresses that evolve during processes Laser materials processing-a rigorous and detailed treatment of laser materials processing and its principle applications, including laser cutting and drilling, welding, surface modification, laser forming, and rapid prototyping Each chapter includes an outline, summary, and example sets to help readers reinforce their understanding of the material. This book is designed to prepare graduate students who will be entering industry; researchers interested in initiating a research program; and practicing engineers who need to stay abreast of the latest developments in this rapidly evolving field.
Download or read book Laser Material Processing written by William M. Steen and published by Springer Science & Business Media. This book was released on 2010-11-30 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: The informal style of Laser Material Processing (4th Edition) will guide you smoothly from the basics of laser physics to the detailed treatment of all the major materials processing techniques for which lasers are now essential. • Helps you to understand how the laser works and to decide which laser is best for your purposes. • New chapters on laser physics, drilling, micro- and nanomanufacturing and biomedical laser processing reflect the changes in the field since the last edition, updating and completing the range of practical knowledge about the processes possible with lasers already familiar to established users of this well-known text. • Provides a firm grounding in the safety aspects of laser use. • Now with end-of-chapter exercises to help students assimilate information as they learn. • The authors’ lively presentation is supported by a number of original cartoons by Patrick Wright and Noel Ford which will bring a smile to your face and ease the learning process.
Download or read book Joining and Assembly of Medical Materials and Devices written by Y N Zhou and published by Elsevier. This book was released on 2013-05-31 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: As medical devices become more intricate, with an increasing number of components made from a wide range of materials, it is important that they meet stringent requirements to ensure that they are safe to be implanted and will not be rejected by the human body. Joining and assembly of medical materials and devices provides a comprehensive overview of joining techniques for a range of medical materials and applications.Part one provides an introduction to medical devices and joining methods with further specific chapters on microwelding methods in medical components and the effects of sterilization on medical materials and welded devices. Part two focuses on medical metals and includes chapters on the joining of shape memory alloys, platinum (Pt) alloys and stainless steel wires for implantable medical devices and evaluating the corrosion performance of metal medical device welds. Part three moves on to highlight the joining and assembly of medical plastics and discusses techniques including ultrasonic welding, transmission laser welding and radio frequency (RF)/dielectric welding. Finally, part four discusses the joining and assembly of biomaterial and tissue implants including metal-ceramic joining techniques for orthopaedic applications and tissue adhesives and sealants for surgical applications.Joining and assembly of medical materials and devices is a technical guide for engineers and researchers within the medical industry, professionals requiring an understanding of joining and assembly techniques in a medical setting, and academics interested in this field. Introduces joining methods in medical applications including microwelding and considers the effects of sterilization on the resulting joints and devices Considers the joining, assembly and corrosion performance of medical metals including shape memory alloys, platinum alloys and stainless steel wires Considers the joining and assembly of medical plastics including multiple welding methods, bonding strategies and adhesives
Download or read book Joining Plastics 2006 written by and published by iSmithers Rapra Publishing. This book was released on 2006 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manufacturing with plastics often involves a bonding step from packaging, electronic and medical devices to large scale automotive, aerospace and construction projects. This is a continually developing field and experts at this Second International Conference on Joining Plastics debated the best methods and options for different applications. Sponsored by The National Physical Laboratory, TWI Limited and Faraday Plastics this conference was an excellent opportunity for plastics manufacturers, design engineers and product developers to talk to experts in the field and discuss the latest developments in Joining Plastics.
Download or read book Handbook of Plastics Joining written by PDL Staff and published by Cambridge University Press. This book was released on 2008-10-23 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hands-on guide to choosing and using old and new technologies for joining plastics and elastomers. Includes detailed discussions of over 25 techniques used to join plastics to themselves and to other materials. Advantages and disadvantages of each technique along with detailed discussions of applications are presented. A second section is organized by material and provides details of using different processes with over 50 generic families of plastics and how different techniques and operating parameters affect weld strength and other criteria. This book is an excellent reference and an invaluable resource for novice and expert alike in determining the best joining technique for their application and providing guidance in how to design and prepare for production.
Download or read book Modeling of Molecular Healing for Micro laser Welding of Plastics with Diffractive Optical Elements as Spatial Modulators written by David A. Grewell and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: This work demonstrated, developed and characterized a new and novel technique for plastics welding using diffractive optics. Using diffractive elements laser beams were reshaped into various geometries that could be used for simultaneous welding of plastic in through transmission infrared welding. This novel technique also included the use of standard optics for resizing diffractive images for microwelding of complex geometries. In addition, new molecular healing models that accurately predict weld size and quality (degree of healing) were developed. The ability to quickly and economically form microwelds is critical to the development and commercialization of polymer-based MEMS and micro-fluidic devices. Thermoplastics offer significant advantages in the fields of biomedical engineering, communications, and in particular applications related to Micro Electro Mechanical Systems (MEMS). For example, the low manufacturing costs of polymers may allow industry to fabricate disposable MEMS. Rapid, consistent, and inexpensive assembly or packaging is critical to the commercialization of polymer-based MEMS. One method of joining that offers great promise of success for MEMS devices is Through Transmission Infrared (TTIr) welding. In the following studies, diffractive optics were used to reshape a laser beam into complex shapes for TTIr welding of plastics. These complex image shapes were then resized to micron-scale for micro-welding of plastics. In this portion of the study, the major findings included but are not limited to the following: 1. The diffractive optical elements could withstand as much as 80W of laser power 2. The efficiencies of the diffractive optics was greater than 55% 3. Micro-weld features as small as 300 microns with weld lines as thin as 75 microns could be produced 4. Cycle times as short as 50 ms are possible with TTIr welding with beam shaping diffractive optics 5. It is possible to produce hermetic welds that can sustain 0.7 MPa of burst pressure, which based on the weld geometry (average weld stress of 16 MPa). Another task of this work was to gain a better understanding of molecular healing so that micro-welds could be better understood. Because minimum weld size is affected by competing driving forces, namely thermal conductivity and molecular diffusion, these forces were studied. For example, as time increases heat conduction results in an increase in weld size, thus minimum heating time is desired to produce small welds. In contrast, molecular healing is also proportional to time, thus increasing the heating time increases weld strength. In addition, these two mechanisms are limited by maximum allowable temperatures, where the base material can degrade or ablate. Thus, increasing the temperatures (power) is also limited. In this study, it was found that the activation energy for molecular diffusion is temperature dependent. In addition, it was found that by considering the temperature cycle of a weld cycle, better models for predicting the degree of healing can be produced compared to traditional models that rely on a single peak temperature.
Download or read book Light Weight Materials written by Kaushik Kumar and published by John Wiley & Sons. This book was released on 2022-01-26 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the automotive and aerospace industries, the need for strong yet light materials has given rise to extensive research into aluminum and magnesium alloys and formable titanium alloys. All of these are categorized as light weight materials. The distinguishing feature of light weight materials is that they are low density, but they have a wide range of properties and, as a result, a wide range of applications. This book provides researchers and students with an overview of the recent advancements in light weight material processing, manufacturing and characterization. It contains chapters by eminent researchers on topics associated with light weight materials, including on the current buzzword “composite materials”. First, this book describes the current status of light weight materials. Then, it studies applications of these materials, given that, as the densities vary, so do the applications, ranging from automobiles and aviation to bio-mechatronics. This book will therefore serve as an excellent guide to this field.
Download or read book Welding written by Avraham Benatar and published by Hanser Gardner Publications. This book was released on 2001 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether you produce automotive parts, medical applications, or mundane consumer goods, welding of plastics and composites is an important step in the manufacturing of these products. This powerful tool gives you an overview of the welding processes currently used in industrial applications . including their advantages and limitations. You will find weldability charts for given applications and suggested process parameters together with evaluation methods for weld quality. Pocket-sized and condensed, yet clear and comprehensive! Plastics Power in the Palm of your Hand!
Download or read book Advanced Joining Processes written by Lucas F. M. da Silva and published by Springer Nature. This book was released on 2020-03-31 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent material science-based and mechanical analysis-based advances in joining processes. It includes all related processes, e.g. friction stir welding, joining by plastic deformation, laser welding, clinch joining, and adhesive bonding, as well as hybrid joints. It gathers selected full-length papers from the 1st Conference on Advanced Joining Processes.
Download or read book Plastics and Composites Welding Handbook written by David A. Grewell and published by . This book was released on 2003 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Machine Learning Applications in Non Conventional Machining Processes written by Bose, Goutam Kumar and published by IGI Global. This book was released on 2021-02-05 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditional machining has many limitations in today’s technology-driven world, which has caused industrial professionals to begin implementing various optimization techniques within their machining processes. The application of methods including machine learning and genetic algorithms has recently transformed the manufacturing industry and created countless opportunities in non-traditional machining methods. Significant research in this area, however, is still considerably lacking. Machine Learning Applications in Non-Conventional Machining Processes is a collection of innovative research on the advancement of intelligent technology in industrial environments and its applications within the manufacturing field. While highlighting topics including evolutionary algorithms, micro-machining, and artificial neural networks, this book is ideally designed for researchers, academicians, engineers, managers, developers, practitioners, industrialists, and students seeking current research on intelligence-based machining processes in today’s technology-driven market.
Download or read book Introduction to Plastics Engineering written by Vijay K. Stokes and published by John Wiley & Sons. This book was released on 2020-04-02 with total page 1627 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authoritative introduction to all aspects of plastics engineering — offering both academic and industry perspectives in one complete volume. Introduction to Plastics Engineering provides a self-contained introduction to plastics engineering. A unique synergistic approach explores all aspects of material use — concepts, mechanics, materials, part design, part fabrication, and assembly — required for converting plastic materials, mainly in the form of small pellets, into useful products. Thermoplastics, thermosets, elastomers, and advanced composites, the four disparate application areas of polymers normally treated as separate subjects, are covered together. Divided into five parts — Concepts, Mechanics, Materials, Part Processing and Assembly, and Material Systems — this inclusive volume enables readers to gain a well-rounded, foundational knowledge of plastics engineering. Chapters cover topics including the structure of polymers, how concepts from polymer physics explain the macro behavior of plastics, evolving concepts for plastics use, simple mechanics principles and their role in plastics engineering, models for the behavior of solids and fluids, and the mechanisms underlying the stiffening of plastics by embedded fibers. Drawing from his over fifty years in both academia and industry, Author Vijay Stokes uses the synergy between fundamentals and applications to provide a more meaningful introduction to plastics. Examines every facet of plastics engineering from materials and fabrication methods to advanced composites Provides accurate, up-to-date information for students and engineers both new to plastics and highly experienced with them Offers a practical guide to large number of materials and their applications Addresses current issues for mechanical design, part performance, and part fabrication Introduction to Plastics Engineering is an ideal text for practicing engineers, researchers, and students in mechanical and plastics engineering and related industries.
