It’s a subject not widely understood by molders and it affects more than just part appearance.


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.

TOOLING: Venting: A View From the Trenches

Venting is a prime culprit for molding problems, partly because toolmakers and process techs have different ideas of what’s needed.


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TOOLING: Venting: A View From the Trenches
Venting is a prime culprit for molding problems, partly because toolmakers and process techs have different ideas of what’s needed.
Columns Published: 4/27/2015

Tooling: Clearing Up the Mysteries Of Mold Texture
It’s a subject not widely understood by molders and it affects more than just part appearance.
Columns Published: 3/31/2015

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


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