Manufacturing And Production Technology - Study Mode

[#176] The carbide tools operating at very low cutting speeds (below 30 m/min)
Correct Answer

(A) Reduces tool life

[#177] The type of reamer used for reaming operation in a blind hole, is
Correct Answer

(C) Right hand spiral fluted reamer

Explanation

Solution: Right hand spiral reamers should be selected for blind holes. - Additionally a right hand spiral also helps bridge interruptions such as cross-holes or keyways. - A right hand spiral reamer may cut slightly oversized holes due to the aggressive flute geometry. - They perform very well in highly ductile materials.

[#178] Stellite preserves hardness up to a temperature of
Correct Answer

(D) 1100°C

Explanation

Solution: Stellite alloys are composed of various amounts of cobalt, nickel, iron, aluminium, boron, carbon, chromium, manganese, molybdenum, phosphorus, sulfur, silicon, and titanium.
Stellite preserves hardness up to a temperature of 1100°C

[#179] High speed steel tools retain their hardness up to a temperature of
Correct Answer

(D) 900°C

[#180] For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature of
Correct Answer

(B) 100°C