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After last month’s introduction to the subject, let’s get into the details on vent depths, land lengths, and the alternatives to perimeter venting.

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

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

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.

To design a mold for the widest processing window and the fewest problems, start by considering the conditions imposed by the material being run.

Parting-line maintenance, mold spotting, and machine conditions can all contribute to flash.

It may be an unfamiliar term, but it’s the key to preventing ejector-pin deflection and breakage

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

New cold-sprue and hot-runner nozzle tips promise utility across a wide range of materials, eliminating the need to swap out different tips for different jobs while also promising to solve scrap and process issues.

Plastics might replace metals in various applications, but in injection molding those parts require steel-based tools to be created, putting molds, and metal, at the center of the process.