Course 04 · Running Forge Dies
See all courses →Running Forge Dies
Thirteen lessons on keeping a die alive on the production floor: pre-heat, lubrication, inspection cadence, diagnostic workflow, maintenance options, and the operator habits that double die life.
- 015 min
Running forge dies: why this course exists
The same die, built to the same print and treated to the same spec, lasts 30K hits in one shop and 120K hits in another. The spread lives in four operator-controlled levers, and that gap is the subject of this course.
- 027 min
Pre-heat strategy: getting the die to operating temperature without killing it
Why a cold die under a hot billet writes off the first few parts and a piece of the die's service life with them, and how induction, gas-ring, and oven preheats each fit different shops.
- 037 min
Die-temperature management during the run: thermal profiling in plain English
Read a die-surface thermal trace, hold the H13 operating window, and use a contact pyrometer and an IR gun without lying to yourself about what either one is measuring.
- 049 min
Thermal cycling and heat checking: where the cracks come from and how to slow them
Why every forge die heat-checks, which of the three contributors a shop can actually move, and how to tell a healthy crazing pattern at 40K hits from a runaway network at 25K.
- 057 min
Lubrication fundamentals: graphite, water-based, synthetics, and what's actually in the drum
Read a forge lube SDS instead of the marketing sheet, tell carrier from active solid, and know which lube families fight nitrided surfaces.
- 067 min
Lubrication application: spray, swab, roller, drip, and why coverage beats volume
Set up a spray bar so coverage is uniform and dwell matches the cycle, tell a wet die from a lubricated die, and read the four classic application failures off the die face.
- 076 min
Inspection cadence: what to look for at 1K, 10K, 50K, and 100K hits
A hit-count inspection checklist that tells you what is normal at each milestone of a forge die's life and what is the early warning the operator must not miss.
- 089 min
Reading wear: crazing, washout, abrasion, adhesive pickup, plastic deformation
Five wear modes, one visual signature each, and the rules that keep heat check from getting called mechanical fatigue and washout from getting called plastic deformation.
- 096 min
Diagnostic workflow when a die starts losing tolerance
The triage order that keeps a shop from replacing a working die because the spray bar moved. Part first, die surface second, process third, press last.
- 107 min
Maintenance options: polish, repolish, weld repair, re-nitride, re-coat, scrap
Match a wear mode to a maintenance action. Know when polish buys real life and when it hides a crack, when TIG weld is the right call versus a coin flip versus never, what re-nitride and re-coat actually recover, and when scrap is the right answer.
- 116 min
Die change-out timing: when to push, when to pull
A working die is always asking one question: keep running, or pull now. The answer lives in scrap-rate trend, wear-progression rate, and the asymmetry between a planned change-out and a catastrophic in-press failure.
- 126 min
Operator and crew procedures: the small habits that double die life
Ten shop-floor habits, grouped into four routines, that separate a 40K-hit shop from a 120K-hit shop on the same die. None of them require new equipment. All of them require that the crew actually do them, every shift, and log the result.
- 138 min
Records and traceability: what to log, what it tells you over time
The minimum die log per hit-block, what a year of those logs reveals that a single teardown cannot, and the standards (AIAG CQI-9, IATF 16949) that already require most of it.