Page 229 - CITS - Fitter Trade Practical - Volume -2
P. 229
FITTER - CITS
EXERCISE 94 : Chipping, chamfering, chip slots and oil
grooves (straight)
Objectives
At the end of this exercise you shall be able to
• mark slot, groove and chamfer as per drawing
• chip slot with cross cut chisel by maintaining the dimensions
• chip oil groove with round nose chisel and maintaining dimensions
• chip angular surface using flat chisel.
Job Sequence
• Check the raw material size with steel rule
• File and finish the raw metal to size 70x48x14 mm.
• Mark the Job as per drawing and punch the witness mark with dot punch 60o.
Chipping straight slot
• Hold the job in bench vice firmly.
• Chip the slot using cross cut chisel and maintain the dimension 9.5 mm width to the depth of 5 mm. Fig 1.
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