Plastic Machining: Design Guide for Plastic Parts

How to use the Plastic Design Guide

  1. Refer to the Design Considerations at the bottom of this page. Consider whether each item on the checklist is a factor in the application or affects performance requirements for the component design.
  2. Select the categories that have the greatest affect on your application.
  3. Review the materials in the Free Plastic Properties Handbook and make a list of possible material candidates.
  4. Contact our technical support to discuss options or ask additional questions.

Custom Plastic Machined Components

Plastic Machining Design Considerations

  • Thermosensitivity – tolerance can change in different temperature conditions
  • Sensitivity to humidity and hygroscopic absorption affects tolerance
  • Sensitivity to chemicals and oils
  • Notch sensitive corners and square ID’s
  • Tolerances
  • High loads
  • High impact
  • Fatigue loading or cycle loading requires consideration of flexing, deflecting, and compression
  • Temperature – max/min extent of time
  • Electrical considerations such as insulating properties
  • Wear resistance or abrasion resistance
  • Dimensional shape retention (load, cold flow, temperature)
  • Regulatory requirements (FDA, UL, etc.)
  • Appearance (color, texture)
  • Optical requirements
  • Outdoor use

Now that you’ve identified the important factors in your application, evaluate material specs in the Plastic Properties Handbook and select your material!

Plastic Machining: Avoid 2015 Material Cost Increases, Order Now

Avoid price increases for production orders by placing 2015 orders now!!

Information we have obtained suggests that plastic material costs will increase in 2015.

In plastic machining, the ultimate cost of an order is dependent on two primary factors: material cost and total machining time. EPP strives to contain manufacturing costs through ongoing efficiencies however, containing material costs proves more difficult.

Since 2009, we have witnessed substantial price increases from plastic material vendors of over 30%, with Teflon and Polycarbonate as key examples of high price volatility.

Given EPP’s manufacturing efficiencies, the other means of minimizing an order’s cost is to obtain material at a lower cost.

The solution to lower the cost of your 2015 production orders is placing 2015 orders now!!