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DRILLING REAMING AND TAPPING - 08


AIM:

DRILLING, REAMING & TAPPING

TOOLS REQUIRED

1. TRY SQUARE & TAP WRENCH
2. 12" BASTARD FLAT & 6" SMOOTH FLAT FILES
3. COUNTER SUNK
4. CENTER PUNCH & HAMMER
5. TAP SET :- M6 AND M10
6. DRILL BITS :- 9.4mm, 4.2mm & 6mm.
7. REAMER :- 9.6mm, 4.7mm &10mm.

MATERIALS REQUIRED

1. 100 x 50 x 12 M.S FLAT
2. MARKING BLUE
3. OIL
4. CLEANING BRUSH
5. COTTON WASTE

PROCEDURE

1. FILE THE WORK PIECE INTO THE RECTANGULAR SHAPE OF 100mm LENGTH AND 45mm HEIGHT. ENSURE THAT ALL ADJACENT SIDES ARE MUTUALLY PERPENDICULAR TO EACH OTHER.

2. THEN MARK THE WORK PIECE AS PER THE GIVEN DRAWING BY USING A VERNIER HEIGHT GAUGE.

3. AFTER MARKING PUNCH ALL CENTER POINTS FOR DRILLING BY USING A CENTER PUNCH AND HAMMER.

4. DRILL THE WORK PIECE AS PER THE DRAWING BY USING 9.4mm, 4.2mm & 6mm. DRILL BITS. APPLY THE COOLANT WHILE DRILLING. 

5. THEN REAM THE DRILLED HOLES FOR BETTER FINISHING BY USING 9.6mm, 4.7mm &10mm REAMERS. APPLY OIL WHILE REAMING. AFTER REAMING CHAMFER ALL HOLES BY USING A COUNTER SUNK. IT HELPS TO EASE ENTERING OF TAP IN TO THE HOLES.

6. AFTER REAMING, TAP THE 4.7mm HOLE WITH M6 TAP AND 9.6mm HOLE WITH M10 TAP SET. ALSO APPLY THE OIL WHILE TAPPING FOR BETTER STRENGTH AND FINISH OF THREADS.


RESULT

DRILLING, REAMING AND TAPPING ARE SUCCESSFULLY DONE  BY PROPER METHOD.
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