Thursday, February 28, 2013

Traction motor manufacturing

Audit of following Work Instructions was done in TM Shop. Report is as follows:-

Dimensional Check Of Copper Strips and Winding Of Bare Field Coils ( W 21.209):-
Points noticed:-

  • WI asks for cleaning of guide plate which itself has become rough due to prolonged use. Same should be renewed.

  • Mandrel for winding preparation INJ-001 and INJ-009 are being sent for calibration.

Bevelling (Milling), Chamfering (Buffing) & Filing Of Bare Field Coils ( W 21.210-):-
Points noticed:-

  • Inner radius measurement gauges ING-21.015 and ING-21.016 are being sent for calibration.

Terminal Marking and Cutting ( W 21.211):-
Points noticed:-
  • Marking templates are being sent for for calibration.

30 Turn Coil Formation ( W 21.212):-
Points noticed

  • This WI is no longer relevant since coils received nowadays don’t need cutting.
  • This WI needs to be delisted.

Other Inspection:-

Problem noticed in TG320 of MVMT not getting fitted during assembly was inspected in the shop.

Base ring fised in Shop#26 was misaligned due to which MVMT frame went out of alignment. Same was being attended by Shop#26 staff by welding another ring over the top of previously welded ring.

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