Mechanical Engineering - Production Engineering - Discussion

Discussion Forum : Production Engineering - Section 1 (Q.No. 41)
41.
The machining of titanium is difficult due to
high thermal conductivity of titanium
chemical reaction between tool and work
low tool-chip contact area
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
32 comments Page 2 of 4.

Raju said:   9 years ago
I think option B is correct.

Alif charniya said:   9 years ago
Titanium produces non-homogenous chips. That's the reason option C is correct.

RUSHIKESH said:   9 years ago
C is the right answer.

Titanium is hard metal.

MD RABNAWAZ QAISAR ANSARI said:   9 years ago
Option C is correct. I agree with the answer.

Neeraj said:   9 years ago
B is right answer according to Kalpakjian book.

Govardhan said:   9 years ago
Titanium can chemically bond with cutting tools, causing built up edges on the tool, decreasing the effectiveness of the tool. So option B is correct.

Anil Pradhan said:   8 years ago
Titanium alloys due to their high strength, low thermal conductivity and chemical reactivity with tool materials (at elevated temperatures), pose a hazard to the tool and significantly reduce the tool life.

Pankaj Kumar Behera said:   8 years ago
Answer is None of these. Because the titanium has very high strength. Due to low thermal conductivity of material, the heat is not dissipated from the primary deformation zone and chips gets accumulated thereby decreasing the shear plane angle and cutting force increases. This question asked in ESE 1992.

Jaimin Patel said:   8 years ago
The Right Answer is B.

Bhavik said:   8 years ago
B is correct answer.

Reference: MANUFACTURING ENGINEERING AND TECHNOLOGY SIXTH EDITION by Serope Kalpakjian.

"Titanium and its alloys have very poor thermal conductivity (the lowest of all
metals), causing a significant temperature rise and built-up edge. They are highly reactive and can be difficult to machine.".


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