| Address: | PDS Enterprise Inc. 1650 West Artesia Blvd, Suite 278 Gardena, CA90248 |
| Phone: | 1-843-408-0142 |
| Email: | pdsenterprise@gmail.com sales@coolprototyping.com |
 |
|
Home>Popular Page
59. Machining - The Methods of Mold Making
Custom molds are built using two main methods: standard machining and EDM. Generally speaking Standard Machining has historically been the method of building plastic molds. With technological development, CNC machining became the predominant means of making more complex molds with more accurate mold details in less time than traditional methods.
The electrical discharge machining (EDM) or spark erosion process has become widely used in mold making. As well as allowing the formation of shapes which are difficult to machine, the process allows pre-hardened custom molds to be shaped so that no heat treatment is required. Changes to a hardened mold by conventional drilling and milling normally require annealing to soften the steel, followed by heat treatment to harden it again. EDM is a simple process in which a shaped electrode, usually made of copper or graphite, is very slowly lowered onto the mold surface (over a period of many hours), which is immersed in paraffin oil. A voltage applied between tool and mold causes spark erosion of the mold surface in the inverse shape of the electrode.
Product design
samples
rapid prototyping
samples
Custom molds
samples
Electronic product
design samples
rapid prototype
samples
Plastic molds
samples
We are constantly looking for new products in order to grow our business and Invention Home has enabled us to streamline that process much more quickly. Marsha Dunmyre
CA, U.S.A
Cool Prototyping Copyright 2008-2009 © All Rights Reserved. Rapid Prototyping