The tool may fail due to

Solution (By Examveda Team)

In manufacturing and production technology, tools used for cutting or shaping materials can fail in various ways. Let’s go through the options:

Option A: Cracking at the cutting edge due to thermal stresses → Correct. When a tool is used under high heat conditions, such as during high-speed cutting, thermal stresses can build up. This can lead to cracking at the cutting edge due to the sudden expansion and contraction of the material.

Option B: Chipping of the cutting edge → Correct. The cutting edge can chip due to the impact forces or the abrasive nature of the material being worked on. This is a common form of failure, especially in brittle materials.

Option C: Plastic deformation of the cutting edge → Correct. Under excessive force or high temperature, the material at the cutting edge can undergo plastic deformation, meaning it changes shape permanently. This results in a loss of the tool's sharpness and effectiveness.

Since all of the mentioned causes can lead to tool failure, the correct answer is Option D: All of these. Each of these factors contributes to the degradation of the tool's cutting edge over time.