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TOOLING: What You Can Do About Mold Buildup
t depends on the materials and additives you use, and the kinds of mold detail, but adequate venting, not overheating the material, and mold coatings are your best defenses.
Columns Published: 2/22/2015
TOOLING: Ejectors: Watch That ‘Unsupported Length’
It may be an unfamiliar term, but it’s the key to preventing ejector-pin deflection and breakage
Columns Published: 1/27/2015
TOOLING: Designing the Tool for the Material
To design a mold for the widest processing window and the fewest problems, start by considering the conditions imposed by the material being run.
Columns Published: 12/29/2014
The Importance of Gate Geometry
Gate size and shape—unlike gate location—don’t often get the attention they deserve. Many common assumptions about gate geometry deserve to be challenged
Columns Published: 11/24/2014
TOOLING: Flash-Free Molding: Part Two
Parting-line maintenance, mold spotting, and machine conditions can all contribute to flash.
Columns Published: 10/23/2014
TOOLING: Flash-Free Molding: Part 1
A robust process window relies a lot on tooling. So it stands to reason that making a tool change to address issues provides a more robust solution
Columns Published: 9/22/2014
TOOLING: Balancing the Heat Budget In Injection Molds
Basic formulas for how much heat you must pull out of the mold to achieve a set cycle time
Columns Published: 6/19/2014