In this blog, we walk you through the steps of doing a balance test on a hotrunner mold. This blog covers the basic methods, steps for conducting the balance test.
Author: Krish Chari
Feed System – Gate Types
This blog is a continuation of the earlier blog on Gate-Basic. Here we explore all the gate types individually and where to use them & why.
FEED SYSTEM – Gate Basic
This blog takes you through the basics of gate design, gate placement and function of a gate. There is a second blog which will follow on gate types to this intro.
Elements of Jigs & Fixtures
This blog explains the four elements of Jigs and Fixtures which are important for a good design. Shown some examples but more detailed for each element will follow soon.
Feed System – Runner Design
This blog is a continuation of the earlier blog on runner basics. Here we talk about the runner features, runner sizing and compromise on selecting runner size.
Feed System – Runner Basics
Runner design and sizing is one of the most important aspect of mold design. This blog covers the basics of runner, function and shapes. Next blog will cover the design aspects.
Feed System – Sprue Bush
As a start of the feed system discussion, sprue bush is the first part in mold design which is explained in this blog. Sprue bush design is important but seldom given any thought during design […]
What is a Jig & Fixture? – Intro
A brand new topic on Jigs and Fixtures which are widely used in the all manufacturing industries. In this blog, you will learn the basics of Jig & Fixture, application, classification and types. More on […]
Composites-Intro
Blog discusses the basics of composites and introduction to terminology of composite materials. Composites provide unique properties for applications and growing trend in plastics.
Fracture Mechanics – Intro
This blog introduces to the theory of fracture mechanics for plastics. Although this is an intro, it can be too theoretical for some, but necessary to understand the concepts.
Boltzmann Superposition Principle
Creep under constant strain is not a practical way of evaluating a material performance. Boltzmann superposition principle explains the different stress loading profile to consider.
Time-Temperature Superposition
This blog explains superposition principle, shift factor and Arrhenius, WLF equation. This principle is very useful to get creep compliance and stress relaxation curves for different test temperatures with reference temperature curves.
Creep Modulus
Creep modulus is an important design parameter for selecting plastics for long term use. This blog takes you step by step of the importance and curves to use for design purposes.
Polymer Deformation Mechanisms
This blog discusses crazing, shear yielding for amorphous polymers and slipping, twinning for semi-crystalline polymers. Deformation phenomenon explained thoroughly.
Yield Stress
Polymer yield stress depends on strain rate and temperature of the testing. This blog explains the both the factors and also Eyring’s model to predict the yield stress during polymer development.