engineering recuitment NMDC Junior Officer (Trainee) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Tool Wear and Failure
The tool life of a tool is said to be over if
1
The tool has failed and a poor surface finish is obtained
2
Sudden increase in power and cutting forces takes place and chatter appears in machining
3
Overheating and fuming due to friction occurs in addition to dimensional instability
4
All of the above