Design and Engineering Forum
[Home] [Design Resources] [Technology Store]
[Archive#1] [Archive #2] [Archive #3] [Calculators]

Injection Molded Part-Cost of tight tolerances
Post Reply   Forum
Posted by: ODONNELL

02/25/2004, 10:15:47

Author Profile Mail author Edit
For injection molded parts, is there a rule of thumb or factor for the Cost vs. #of decimal places in your tolerance?
Thanks






Post Reply | Recommend | Alert Rate View All   | Next |

Replies to this message


Re: Injection Molded Part-Cost of tight tolerances
Re: Injection Molded Part-Cost of tight tolerances -- ODONNELL Post Reply Top of thread Forum
Posted by: insideman

02/28/2004, 03:59:22

Author Profile Mail author Edit
That depends.... On a lot of factors. Are you using a material that behaves well in the mold? Is the part design right? Is the process rigorously controlled?

How tight is tight in your mind? Plis/minus .001 inch is fairly routine.







Post Reply | Recommend | Alert Rate Where am I? Original Top of thread
Re: Injection Molded Part-Cost of tight tolerances
Re: Injection Molded Part-Cost of tight tolerances -- ODONNELL Post Reply Top of thread Forum
Posted by: Cragyon
Bart
02/25/2004, 10:33:03

Author Profile Mail author Edit
I'm not sure about a rule of thumb with regard to tolerance significant figures, however, anytime you ask for a dimensional conformance which is at or beyond the natural process capability, the cost will go up.  By process capability, I mean any manufacturing process. 






Post Reply | Recommend | Alert Rate Where am I? Original Top of thread | |

Powered by Engineers Edge

© Copyright 2000 - 2018, by Engineers Edge, LLC All rights reserved.  Disclaimer