Injection tooling knowledge base
Five reference notes on mould types, steel grades, DFM and simulation, written for the person who has to justify a tooling decision to somebody else.
Choosing between the eight injection mould types
Standard, prototype, reversed, multi-cavity, unscrewing, hot runner, 2K over mould and 2K rotational: what each one is for and what it costs you.
6 min read
Mould steel grades and standard component brands, and why they appear on the quotation
A reference list of the steel grades, mould base suppliers, component suppliers and hot runner brands TJ-Teck quotes, with notes on when each grade is the right one.
7 min read
The fourteen DFM checks, and what each one catches
De-molding direction through markings and graining: the fourteen items in a TJ-Teck DFM report and the defect each one exists to prevent.
8 min read
What Moldflow simulation actually catches, and when to bother
Gating position, cycle time, venting and air traps, clamping force, cooling efficiency and distortion: six questions a fill simulation answers before a tool exists.
6 min read
What to send with a tooling enquiry so the quotation is worth reading
The six things that let a mould maker quote accurately in 1-3 working days, and the three assumptions a supplier has to make when they are missing.
5 min readA question these notes do not answer?
E-mail it. Questions about tooling get an answer whether or not they turn into an enquiry.