The Blog

Training Tip: The Five Stages of DOE

Design of Experiments, or DOE, is a powerful mathematical tool that can be successfully applied to areas of new mold trials and to trouble-shoot potentially challenging processes. Experimental design techniques can be utilized by anyone with a fundamental understanding of injection molding. There are five primary stages for conducting a designed experiment. These are planning, […]

PTXPO Sweepstakes

Don’t miss out on the opportunity to win a one year subscription to Kruse Training! All you have to do is fill out the form below and visit us at Booth #1222 at PTXPO to get your badge scanned. The winner will be announced on Tuesday, April 4, 2023. This prize offers full access to […]

Torsten’s Training Tip: Mold Functionality

An important step in the molding process is preparing the mold for optimal functionality. Every plastic injection mold is unique and requires a tailored set-up strategy. There are several important steps to take prior to beginning the molding process development phase. These include setting up and checking the functionality of the following: Molding machine Mold Ejector […]

Torsten’s Training Tip: Thermal Properties

During the injection molding process, a polymer is heated in different ways, beginning inside the machine cylinder. Electric heater bands around the cylinder create heat which is transferred through convection from the cylinder to the polymer. Then, the rotating screw creates shear heat which transfers to the polymer on top of the convection transfer. In […]

Torsten’s Training Tip: Jetting

Injection molding polymer through small gates creates complex three-dimensional fluid flow behaviors. Jetting occurs in injection molding when polymer material is injected through a nozzle, runner, or gate at high velocity, into open, thicker areas, without forming contact with the mold wall.  The jetting effect is like water flowing through a hose. If you place your thumb on […]

Torsten’s Training Tip: Parallel and Serial Coolant Circuits

An injection mold is effectively a heat exchanger. Molten polymer material that is injected must be cooled by the mold cooling system. As part designs become more complex, cavitation requirements increase, and larger overall mold bases are needed. Mold designers have several options when designing effective heat removal systems. Coolant circuits can be parallel or […]

PRESS RELEASE: Kruse Training to Launch First Virtual Reality Training Program for Injection Molding Industry at PTXPO 2022     

NAPLES, Fla., December 13, 2021 – Kruse Training Inc., a leading developer of interactive online training programs for part/mold designers and processing engineers, will launch the first virtual reality training program for the injection molding industry at the Plastics Technology Expo 2022 (PTXPO) March 29-31, in Chicago. Show attendees can try out the new virtual […]

Torsten’s Training Tip: Understanding Flow-Induced Molded-In Stress

Injection molding is a complex manufacturing process involving temperature and pressure. During the molding process polymer materials experience complex molecular chain deformation while undergoing temperature and pressure changes. Molded part properties and performance are dependent on, and influenced by, design complexity and the molding process. Understanding molded-in stress, specifically flow induced molded-in stress, is an […]

New Virtual Reality Training launches at MD&M West

Are you ready for a new way of learning? With our sights on training the next generation of injection molding professionals and industry veterans, we launched our new virtual reality training initiative at the MD&M West 2021 show in Anaheim, CA. The show brings together innovate thinkers, business leaders, and engineers from across the globe […]

Torsten’s Training Tip: Polymer Materials Overview

It is important for part and mold designers not only to understand design principles, but also to understand the fundamentals of plastics. The choice of a plastic, or polymer, has a strong impact on the outcome of a molded part. Polymers are categorized by processing methods and temperature behavior. The major groups are thermoplastics, thermosets, […]