Event Calendar

Tuesday, December 8, 2020

Basic Mold Design

Start Date: 9/8/2020 6:00 PM CDT
End Date: 12/8/2020 9:00 PM CST

Venue Name: Technology & Manufacturing Association

1651 Wilkening Road
Schaumburg, IL  United States  60173

Organization Name: Technology & Manufacturing Association

Nayhelly Caldera
Email: education@tmaillinois.org
Phone: (847) 993-2134

September 8, 2020 - December 8, 2020
6:00 pm - 9:00 pm 

This class will cover multiple types of molds, including stripper plate molds, unscrewing molds, quick change molds, and hot runner molds. Students will learn the basics of mold construction, covering the use and placement of bolts and dowels. Along with leader pins, return pins, support pillars, stop buttons, rail design, clamp slots, and parting-line locks. Explanations on how the mold interfaces with the molding press. Horizontal and vertical clamping is also covered. How to efficiently place the cavities/cores in the mold and choose the best parting-line positions. How runners, ejection, and gates are effected by placement. Solid vs. split construction of basic mold inserting is covered. Plastic resin fundamentals are also explained including amorphous and semi-crystalline. As well as basic plastics’ properties and how they affect the mold design.

Other content includes:

  • How to use shrink to your advantage
  • Factors which effect shrink and warp
  • Common gate design errors
  • Runner sizing guidelines
  • Runner pullers
  • Knock-out patterns
  • Return pins and springs 
  • Typical slide and lifter construction 
  • Mechanical vs hydraulic slides and lifters 
  • Venting of piece parts and runners 
  • How venting effects the molded part
  • General rules for waterline placement
Member Price: $4,499.00
Nonmember Price: $6,000.00


Graduate of the TMA Related Theory Apprentice Training Program with a focus on Mold Making  OR
Equivalent industry experience with instructor consent 

NOTE: Dates and times subject to change; employers will be notified of any changes. Classes, workshops, or special events require a minimum number of registrants in order to run as scheduled. In the event of a cancellation, TMA will refund your fee IN FULL. 

CANCELLATION POLICY:  All cancellations will be assessed a $25 Cancellation Fee. Companies will be charged IN FULL if cancellations are not received in writing, by email (education@tmaillinois.org) or faxed (847-825-0041) by noon 5 business days prior to the start date of the class or workshop. No refunds will be provided after this time. If you do not cancel and do not attend, you are still responsible for payment.


Online Registration

Registration is Closed
Closed: 8/1/2020 4:25 PM

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