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Product Design & Development.

Applying Pro/E to Plastic Part Design

May 7 and 8, 2002 Code: APEP

Purpose & Overview

This seminar will give you practical training that you can take back to your job and use on real world plastic parts. Avoiding the generic teaching of most training sessions, this seminar will touch on the application of techniques involving surfacing, relations, sweeps, rounds, failure resolution, and top down design as applied to plastic part design. If you want to gain new insights into powerful modeling methods, this seminar will have something for you.

Who Should Atend?

This two-day seminar especially designed for the intermediate Pro/E user in the plastics field. An intermediate level of Pro/E training is necessary as we will be covering advanced concepts and a basic understanding of using Pro/E will be assumed.

About the Instructor: Chris Fawcett

Chris Fawcett has worked at Fawcett Design Inc. since 1987. He has been responsible for implementing all hardware and software systems for the company. He is responsible for training all company employees in the use of 3D CAD. Chris has 14 years experience using 2D and 3D CAD software to develop plastic products. This includes creating renderings and animations from 3D CAD files. He is experienced with hardware/software implementation for both Unix and Windows NT. Chris is a graduate of the University of Akron with a BS in Mechanical Engineering.

Seminar Content

Advanced Surface * Advanced surface copying (surf and bounds, solid surfs) * Silhouette trimming * Boundary surface creation * Surface transform

Similar Part Design * Mirror image parts * Assembly design * Alternate design methods

Advanced Relations * Equations * Trajpar

Surface Techniques * Boss copy * Tweak replace

Advanced Sweeps * Variable section sweeps * Pivot direction VSS * Swept blends

Advanced Rounds * Advanced rounds * Edge/surf * Curve driven

Feature Failure * Failure determination * Resolution * 3 R's * Back-up parts

Top Down Design * Concepts

Seminar Fee

Early registration - On or before 4/3/02

SPE Member $730 Nonmember $845

Late registration - After 4/3/02

SPE Member $780 Nonmember $895

Design of Snap-fit Assemblies

May 6, 2002

Code: DSA

Purpose & Overview

The purpose of this seminar is to make attendees more aware of the trade-offs that are associated with the design of snap-fits. There is a fundamental difference in designing a part to be assembled with snap-fits versus threaded fasteners. Unfortunately, most designers are not exploiting the advantages of using snap-fits to their maximum extent.

Who Should Attend?

Plastic part designers, manufacturing and assembly engineers, and product development leaders and those interested in improving their understanding of the mechanical joining of plastic parts using snap-fits should attend.

About the Instructor: Dr. Anthony F. Luscher

Dr. Anthony F. Luscher is an Assistant Professor in the Department of Mechanical Engineering at The Ohio State University. He is the director of the Integral Attachment Program at OSU which is chartered with improving the mechanical assembly of plastic parts. He is also Co-director of the National Science Foundation Center for Applied Plastic Design & Manufacture, Chairman of the ASME Joining and Fastening subcommittee, and a member of the SPE Decorating and Assembly Division. He holds two patents for snap-fit enabled products. Dr. Luscher received his Ph.D. in Mechanical Engineering from Rensselaer Polytechnic Institute (RPI) and both his B.Sc. and MS. degrees in Mechanical Engineering from the University of Rochester. He worked for the General Electric Co. from 1983 to 1988 using finite elements techniques in the design of power generation equipment and developing improved 3D modeling techniques. From 1988 to 1995 Tony was employed by RPI as an instructor and later as a project manager in the Design and Man ufacturing Institute. Tony founded the Integral Fastening Program at RPI in 1992.

Seminar Content Feature and Feature Design

This contains some of the information which designers often request from us. Items like retention forces, insertion forces, tolerance effects, and geometric effects are discussed. Maximizing these traits in individual snap-fits is the main point of this talk. Typically cantilever hooks, bayonet finger, post and dome, and lugs are discussed in detail, Additional locational, locking and compliant features are reviewed as well in, lesser detail. The presentation is designed to be interactive in hopes of enlightening designers of newer concepts in feature design. It is our intent with this seminar to merely make designers aware of how to design snap-fits that are readily molded and provide the necessary strength that the application requires.

Attachment Strategy

"Big picture" topics on how to optimally attach parts will be presented. Heuristics are discussed for things like degree of freedom removal, overconstraint and line of action concepts. Manufacturing concerns are incorporated as well, with emphasis on which types of features are more suited for the different assembly methods: push, twist, slide, and tip. It is intended to make designers more aware of trade-offs which are not usually considered, and to teach the importance of spending more time in the conceptual design phase.

Seminar Fee

Early registration - On or before 4/3/02

SPE Member $540

Nonmember $655

Late registration - After 4/3/02

SPE Member $590

Nonmember $705

Snap-fits, Press-fits and Welding of Plastics

May 7, 2002

Code: SPW

Purpose & Overview

This seminar offers technical background for both the designer and engineer to select the optimum joining process for your specific application. It will follow the process to implementation in the design and then carry the design successfully through to the manufacturing stage. Your instructor will emphasize the importance of addressing one of the most common and pertinent challenges in this area, designing with plastic materials as opposed to metals. Learn how to utilize the advantages plastics provide, and how to avoid the pitfalls of improper design. Detailed examples of parts manufactured by each of the 22 major plastics processing methods for 34 of the most commonly used plastics will be reviewed. Your instructor will closely examine: design for disassembly, recycling, cost reduction and complete elimination of joining operations.

Who should attend?

Designers, engineers, engineering managers, purchasing agents and others involved in plastic product research and development will find this seminar invaluable in selecting and implementing joining techniques.

About the Instructor: Jordan Rotheiser

Jordan Rotheiser is a practicing plastics engineer and industrial designer with over 30 years of experience in the design of plastic products. Besides "Joining of Plastics", he has authored the chapter on plastics design in the "Modern Plastics Handbook", has been a guest columnist for "Plastics. Design Forum" and "Plastics Engineering", has had articles published on his work in other national publications. Mr. Rotheiser holds a B.S. in Engineering and a B.F.A. in Industrial Design, both from the University of Illinois. He worked for General Motors, Abbott Laboratories and Compagnie de I' Esthetique Industrielle in Paris before forming Rotheiser Design Inc., which specializes in plastic product design. Holder of nine patents, he is a Senior member of the Society of Plastics Engineers and has served the society in many functions at the section, division and national level.

Seminar Content

Designing to Avoid Fitment Distortion * Wall thickness * Inside corners * Ribs * Bosses * Draft * Locators * Tolerancing

Snap Fits * Advantages and disadvantages * Snap fit theory * Material selection * One-way and reopenable snap fit design * Annular snap fits * Snap fit tooling

Press Fits * Advantages and disadvantages * Press fit theory * Material selection * Creep * Loadings * Press fit design * Design tips to permit looser tolerances * Safety factors

Ultrasonic Welding * Advantages and disadvantages * Process description * Application and design details for energy directors * Shear joints * Stakes * Spot Welds * Swaging

Hot Die/Fusion/Hot Plate, Hot Wire, Hot Gas, Vibration, Induction/Electromagnetic, and Spin Welding * Advantages and disadvantages * Process description * Joint design * Applications for each of these processes

Attendees will receive the textbook titled "Joining of Plastics - Handbook for Designers and Engineers" by Jordan Rotheiser which will be used as the seminar manual.

Seminar Fee

Early registration - On or before 4/3/02

SPE Member $640

Nonmember $755

Late registration - After 4/3/02

SPE Member $690

Nonmember $805
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Title Annotation:seminar
Publication:Plastics Engineering
Article Type:Brief Article
Date:Mar 1, 2002
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