1
GATE ME 1991
Subjective
+5
-0
Calculate the $$MRR$$ and Specific cutting pressure for the following cutting conditions
Work material : steel,
Tool material : $$HSS,$$
Depth of cut : $$1.6mm,$$
Feed : $$0.8mm/rev$$
Cutting speed $$=5.5m/min$$ and power consumed $$=0.67$$ $$kW$$
2
GATE ME 1991
Subjective
+2
-0
Match the products and their manufacturing process GATE ME 1991 Production Engineering - Machining Question 19 English
3
GATE ME 1991
MCQ (Single Correct Answer)
+2
-0.6
For cutting double start screw threads of pitch $$1.0$$ $$mm$$ on a lathe, the thread cutting tool should have a feed rate of
A
$$0.5$$ $$mm/rev$$
B
$$1.0$$ $$mm/rev$$
C
$$2.0$$ $$mm/rev$$
D
$$4.0$$ $$mm/rev$$
4
GATE ME 1991
Subjective
+5
-0
Determine the Merchants constant $$'C'$$ (shear angle relation) for aluminium from the following orthogonal machining data. Rake angle $${35^ \circ }$$ and an uncut chip thickness $$0.15mm,$$ the values of $${F_c}$$ and $${F_t}$$ are found to be $$200$$ and $$90$$ $$N$$ respectively. The average chip thickness is also measured and found to be $$0.3$$ $$mm,$$ width of cut $$2.5mm$$ and cutting velocity $$30m/min.$$