EPP Corporation » quality

Design Guide for Plastic Parts

admin — Tue, 16 Feb 2010 15:18:58 +0000

How to use the Plastic Design Guide

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.
Select the categories that have the greatest affect on your application.
Review the materials in the Plastic Properties Handbook and make a list of possible material candidates.
Contact our technical support to discuss options or ask additional questions.

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!

Selecting a Plastic Machining Vendor: Looking for the Best

admin — Fri, 15 Jan 2010 15:39:59 +0000

Selection of a truly qualified vendor is extremely important in today’s business environment. The time it takes to ask the right questions will pay big dividends – helping you obtain high quality machined plastic parts. And even though the rules for service and quality seem to be continually evolving, getting the best part at the lowest possible price is still the golden rule of purchasing.

If you’re looking for a plastic machining supplier, don’t settle for anything less than the best. Request a Quote from EPP Corporation today.

Click Here to return to “How to Select the Correct Plastic Machining Vendor.”

Selecting a Plastic Machining Vendor: Quality & Price

admin — Fri, 15 Jan 2010 15:33:40 +0000

Quality, of course, is directly related to price. Make sure the vendors you interview can provide the highest quality part at the lowest price. Plastic machining vendors can keep errors to a minimum if they are highly process driven, are ISO Certified, use documented SPC procedures, and own the proper inspection equipment such as CMM or video inspection systems. The company with the fewest errors will produce the highest quality and at the lowest cost.

Make sure the supplier is familiar with each machining process you need for your application, as well as with the specific plastic material you will be using. Experience, more than anything else, will help make sure a supplier offers you the most cost-effective part with the best quality.

If you’d like to see how a process driven, high quality machining vendor compares to your current supplier, Request a Quote from EPP Corporation.

Click Here to return to “How to Select the Correct Plastic Machining Vendor.”