Mechanical Engineering - Production Engineering - Discussion

Titanium is very reactive metal. So here option B should be correct.

Titanium is very reactive in nature that is why it's machining is very difficult and this is the reason why it has limited applications, titanium is light in weight and exhibit high strength. It's use is limited because it's usage is not economical e.g aircraft application.

Titanium is highly chemically reactive and reacts with almost all tool materials. So its machining is generally done using water jet. That's why answer B is correct.

Yes I agree with both of you. You both are correct.

Titanium is very heavy in weight compare to other metal. And yes it is chemically reactive but challenging part is variation of chip thickness. Hence, I go with option C.

Titanium alloys due to their high strength, low thermal conductivity and chemical re-activity with tool materials (at elevated temperatures), pose a hazard to the tool and significantly reduce the tool life.

In addition, a relatively low Young\'s modulus of titanium alloys leads to spring-back and chatter leading to poor surface quality of the finished product.

Finally, during turning and drilling, long continuous chips are produced; causing their entanglement with the cutting tool and making automated machining near impossible.

What is the correct answer? Please tell me clearly.

Low modulus of elasticity tends it to move away from cutting tool easily. It makes it more springy and difficult to maintain proper contact with the tool.

Option given is one probable answer. And coming to reactivity, it satisfies both B and C.

Generally, titanium material having less thermal conductivity. Hence this material is difficult to cut.

Option B is correct. Reference - Kalpakijan and Schmidt.