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Heat Code Changes

REV: 11/08/07

Scope: This procedure covers the changing of heat code lettering in the forge die during a run. Code changes occur when all of the steel cut from one heat code has been forged and the job will continue with another.

STEP

WHO

WHEN

INFO TO USE

WHAT TO DO

RESULTS

1 Production Supervisor or Lead Man As walk past furnaces Tub/buggy tags; Steelyard Traveler Check to see if code changes will be coming up soon and notify the Hammerman and his crew, unless the parts are un-coded. Hammerman forewarned of code changes to minimize hammer downtime
2 Heater or Induction Heater Operator (double- checked by Hammerman) Upon completing a container of steel Tub/buggy tags; Steelyard Traveler Check tag on next buggy or tub; be sure containers for a heat code are run in order; if the new buggy (or tub) has a different heat code from the current one, be sure the current tag shows that it completes the heat code, then notify the Hammerman of the code change; unless the parts are un-coded be sure the Hammerman or someone on the crew has been notified; clearly separate the steel from one heat to the next so they never even get close to each other in the furnace; DO NOT LET THE HAMMERMAN HAVE STEEL OF THE NEW HEAT CODE UNTIL THE DIE IS RESTAMPED; (or, in the case of un-coded parts, until the new parts buggy is tagged and in place); notify Die Shop if hot stamping required; if not required, go to step 4. Steel of the two heat codes clearly separated
3 Die Shop Leadman or Die Shop Helper When Die is ready for hot stamping Job; trim tooling Insert stamp or cassette in trim tooling. Hot stamped punch prepared
4 Hammerman At the end of steel for one heat code Tub/buggy tags; notification from heater Stop forging...DO NOT FORGE PARTS WITH A WRONG HEAT CODE; prop the ram; pull out the top die if it has heat code stamping; get the Die Shop Helper, the Hammerman or Die Prep Helper to restamp the die for the new heat code (unless the part is un-coded); have the parts buggy or tub pulled out so the new heat code goes into a new container; be sure that the new container is tagged with the right heat code. Die ready for restamping
5 Hammerman As forging job is completed Tub/buggy tags; Steelyard Traveler; own knowledge Before changing heat codes count all scrap on disposition table and record on Hammer Scrap Logs; scan quantity into M2M; forward Hammerlogs and Hammer Scrap Logs to Production Supervisor for review. Scrap counted and recorded; Hammerlogs and Hammer Scrap Log forwarded
6 Production Supervisor Upon receiving Hammerlogs and Hammer Scrap Logs Hammerlogs and Hammer Scrap Logs, own knowledge Review Hammer Scrap Log for causes of scrap; after review forward to Manufacturing Manager for review. Hammerlogs and Hammer Scrap Log reviewed and forwarded to Manufacturing Manager
7 Manufacturing Manager Upon receiving Hammerlogs and Hammer Scrap Logs Hammerlogs and Hammer Scrap Logs Review Hammerlogs and Hammer Scrap Logs for causes of any scrap; after review forward to Materials Clerk. Hammerlogs and Hammer Scrap Logs reviewed; forwarded to Materials Clerk
8  Materials Clerk Upon receiving Hammerlogs and Hammer Scrap Logs Hammerlogs and  Hammer Scrap Logs Enter Scrap cause from Hammer Scrap Logs into M2M; file Hammerlogs and Hammer Scrap Log in the Hammerlog  files. Scrap cause entered in M2M; Hammerlogs and Hammer Scrap Logs filed in Hammerlog files
9 Die Shop Worker or Hammer Crewman assigned by Production Supervisor After ram is propped and top die out (if needed) Steelyard Traveler  for new code; tub/buggy tag; print Verify that the Steelyard Traveler has the same heat code as the new tub/buggy tag; restamp the die per print (if any) ;double check all stamping; turn the die back over to the hammerman; sign the Steelyard Traveler and hang it up on the clipboard and initial hammerlog. Die properly restamped; Steelyard Traveler on clipboard by hammer
10 Hammerman/ QC Inspector After die is restamped Steelyard Traveler for new code; tub/buggy tags Set the hammer back up and forge the first part with steel of the new heat code; compare the lettering to be sure it is the same code as on the tag for the new heat code and on the Steelyard Traveler; IF THE DIE IS NOT STAMPED RIGHT, IMMEDIATELY GIVE ANY PART WITH BAD LETTERING TO THE QC INSPECTOR TO HAND-RESTAMP AND GO BACK TO STEP 2; after ensuring that all codes agree, start a new line on the hammerlog showing the new heat code ("code letter") in the die, on the tub/buggy tag and on the Steelyard Traveler, then resume forging; if OK, Inspection must sign off paperwork before running production. Properly stamped parts produced; hammerlog maintained
 

 

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