Machining plastic guidelines

Some important guidelines should be remembered when machining plastics ... 

Tablet capping and lamination typically create the most difficult problems, due to a variety of causes. Identification of the cause often leads to the solution. The basic concepts to alleviate these problems center on minimizing elastic behavior while promoting plastic deformation. Depending on the exact nature of the problem, this can be achieved from a formulation perspective by modifying the formula to incorporate a plastically deforming matrix, by adding components to enhance bonding, or by increasing the moisture level. Alternatively, from a machine perspective the following guidelines should be followed ...

The Advance Recycling Technology ET-1 machine handles a wide variety of thermoplastics, although there are limitations due to the process and specific resin properties, as with the Superwood machine. The following guidelines for the most popular plastics have been submitted by the U.S. supplier of the ET-1 [Mackzo, 1990] ... 

Thus there are important guidelines to remember when considering machining of plastics ... 

Korane KJ (2000) Guidelines for Bonding Plastics. Machine Design... 

There are DFM guidelines for many technologies in the MID reference process. Plastic injection molding is a case in point. The makers of machines and tools publish design notes and guidelines of this nature (Section 8.2.3). 

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