Molds & Tooling

Exploring the: Molds & Tooling Zone

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Published: 7/1/2015

TOOLING: How to Vent Mold Details
Principles to follow in venting bosses, ribs, pins, cores, slides, and lifters.

Published: 4/27/2015

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.

Published: 3/31/2015

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.

Published: 2/22/2015

TOOLING: What You Can Do About Mold Buildup
It 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.

Published: 1/27/2015

TOOLING: Ejectors: Watch That ‘Unsupported Length’
It may be an unfamiliar term, but it’s the key to preventing ejector-pin deflection and breakage

Published: 12/29/2014

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.

Published: 11/24/2014

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

Published: 10/23/2014

TOOLING: Flash-Free Molding: Part Two
Parting-line maintenance, mold spotting, and machine conditions can all contribute to flash.

Published: 10/23/2014

Check Out the New PTonline.com
Following the relaunch of our print publication and electronic newsletters, our website has a new, vibrant look now, too.

Published: 10/1/2014

The Everyday Mold Experience
Maintenance and repair are critical to meeting manufacturing goals.