For Questions Contact: Sietske Rauwendaal 530-269-1082 or sietske@rauwendaal.com

 

About the Seminar

The seminar presents an intensive introduction to die design for plastic extrusion. 
The objectives of this seminar are:

• to teach the basic principles of die design
• to demonstrate the application of these principles to the design of the main types of extrusion dies:   
• tubing and pipe dies, wire coating dies, sheet and flat film dies, profile dies, spiral mandrel dies, and coextrusion dies. 
• to discuss the design of calibrators

Two recognized experts will be the instructors for the seminar.

What the attendees will learn:

• the flow properties that determine how the material behaves in the die and when it leaves the die
• the various types of extrusion dies used for different products
• materials and coating used for extrusion dies
• simple calculations for die design
• how computer programs can be used to analyze and design extrusion dies
• the advantages and disadvantages of various die geometries, e.g. the conventional pipe die versus the spiral mandrel pipe die
• various die flow problems and how to avoid them

Who should attend:

• Die designers
• Process engineers
• Manufacturing engineers
• Extrusion supervisors
• Technical service personnel

 

Registration Information, Fees & Canceling, Location & Accomodations
Fees & Registration Form
Location and Accommodations & Seminar Hours & Cancellation Policy

Printable Outline

Course Description

Continued...

Introduction  • Overview of types of extrusion dies  • Important melt flow properties  • General rules & guidelines  • Complicating factors in die design      • Extrudate swell      • Draw down                 • Relaxation                 • Shrinkage Design of flat & annular dies  • Computer aided die design  • Flat sheet and film dies      • Fish tail dies      • Coathanger dies                 • Horseshoe dies      • Tubing and pipe dies      • In-line dies      • Crosshead dies        •Wire coating dies • Blown film dies      • Spiral mandrel dies      • Smooth mandrel dies             • Pancake dies  • Coextrusion dies      • Feed block system      • Multi-manifold system         • Interfacial problems      • Troubleshooting extruders Profile Die Design  • Conceptual design  • Design parameters  • Flow through profile dies  • How to handle swell  • Parabolic flow  • Esthetics of the extruded profile  • Statistics to improve extrusion  • Actual die design and effect of      • Plastic properties     • Land length        • Preland                • Draw down            • Die material Calibrators  • Different types of calibrators  • Friction sizing  • External sizing with compressed air  • External sizing with vacuum  • Internal sizing  • Precision extrusion pullforming

Die Design Testimonials Chris is a topnotch teacher.  He has a knack for bringing a technical subject to a diverse audience.  He engaged the students well.  Michael Richter, Engineer, WeyerHaeuser March 2005. After working with dies for 12 years, I found the seminar to be both informative and supportive of technologies I have learned.  Chris Rauwendaal is a patient and extremely knowledgeable instructor. Jeffrey Stanley, Process Tech II, Trex Company Inc., March 2005. Very informative!  Chris puts on a very professional seminar.  Phillip Jordon, Mfg Engr, Apcom, March 2005              Books authored by Chris Rauwendaal: Polymer Extrusion available with registration in any seminar for a discounted price of $75.00 Check appropriate box on registration form. Understanding Extrusion Troubleshooting the Extrusion Process SPC in Injection Molding and Extrusion Polymer Mixing Mixing in Polymer Processing Participants wishing to visit the Conair Manufacturing Facility in Franklin PA in the afternoon of Wednesday April 1st (Day prior to the start of the seminar) can set this up by contacting John Weagraff jweagraff@conairgroup.com Phone: 814-437-6861 Fax: 814-432-6227   455 Allegheny Blvd, Franklin, PA 16323