Manufacturing And Production Technology - Study Mode
[#196] Threading is an operation of
Correct Answer
(D) Cutting helical grooves on the external cylindrical surface
[#197] Quality screw threads are produced by
Correct Answer
(C) Thread cutting with single point tool
Explanation
Solution: Thread cutting with a single point tool is a method performed on a lathe where a single-point cutting tool is used to gradually cut screw threads by taking multiple passes. This method provides high precision, excellent control over thread geometry, and superior surface finish, making it ideal for producing quality threads. Thread milling is also used in certain cases but is typically employed for large or specialized threads and may not match the precision of single-point cutting. Thread chasing is used to clean or repair existing threads and is not suitable for generating new precision threads. Thread casting is used in bulk manufacturing processes, but it produces threads with lower dimensional accuracy and surface finish compared to machining. Therefore, thread cutting with a single point tool is the most accurate and preferred method for producing high-quality screw threads.
[#198] Ultrasonic machining is best suited for
Correct Answer
(D) All of these
[#199] Which of the following parameters govern the value of shear angle in continuous chip formation?
Correct Answer
(D) All of these
[#200] Surface grinding is done to produce
Correct Answer
(B) Flat surface