mechanical engineering tool design

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1  Explain the ANSI DESIGNATION 0.250-P-30-15-U FOR A DRILL BUSHING

 

2 WHAT BACK-RAKE ANGLE SHOULD A SINGLE-POINT,HIGH-SPEED TOOL HAVE FOR TURNING SEA 1040 STEEL?

 

3 THE MECHANICAL EFFICIENCY OF MANCHINE IS 0.85.THE TARE AND CUTTING TOOL HORSEPOWER ARE 0.5 AND 0.9 RESPECTIVELY.WHAT GROSS OR MOTOR HORSE WOULD BE REQUIRED FOR OPERATION.

 

4 DETERMINE THE APPROXIMATE TIME,IN SECONDS,FOR AN INDUCTION BRAZING OPERATION BASED ON THE FOLLOWING INFORMATION

>BRAZING TEMPERATURE=400 DEGREE F

>VOLUME OF METAL (STEEL) BROUGHT TO BRAZING TEMPERATURE =12 CU.IN

>SURFACE AREA OF THE JOINT =10 sQ.IN

 

5 CALCULATE THE GO AND NO GO GAGE DIMENSION OF A PLUG GAGE USING  THE BILATERAL SYSTEM FOR A HOLE SIZE 0.750 +- 0.005 IN.DO NOT USE WEAR ALLOWANCE.USE 10 PERCENT OF THE TOTAL WORK TOERANCE AS THE GAGE TOLERANCE.

    • 10 years ago
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