A working mold maintenance schedule in four tiers — every shift, every 10,000 shots, every 50,000 shots, annual — with the checks, the pass criteria, the log fields and the spare parts worth holding.
Mold Maintenance Schedule: What to Check, How Often, and What It Prevents Read Post »
Four conditions decide whether a two-shot or overmolded part is buildable: a defined bonding surface, a shut-off that seals, an elastomer wall that fills and freezes, and a tool motion that repeats. Here is how to check each on the drawing.
Two-Shot and Overmolding: Design Constraints That Decide Whether the Tool Works Read Post »
Four defects explain most injection molding problems. How to read each one, the order to check causes, and when the fix belongs in the tool rather than the process.
Injection Molding Defects: Warpage, Sink, Short Shot and Flash Read Post »
How to choose mold steel for an injection mold: hardness, polishability, corrosion resistance and when a pre-hardened P20 block is the right call.
Mold Steel Selection: P20, 718H, S136 or NAK80? Read Post »
T1 is the first trial of a new mold. FAI is the measurement of the first parts, the dimensional report is the measured data, and PPAP is the approval package. What each document contains and how to review them.
How to Read a T1 Trial Report: FAI, Dimensional Report and PPAP Explained Read Post »
Seven factors decide what an injection mold costs: part geometry, cavity count, steel grade, mold structure, surface finish, tolerance and validation scope. How to check each one before you approve a quotation.
What Drives the Cost of an Injection Mold? Seven Factors Buyers Can Check Read Post »