one of the following is main disadvantage of flame hardeing process of nsurface hardeing?
A)possibility of over heating and grain growth
B)close control over case depth is not possible
C)mostly suitable or symmetri components only
D)all of the above

Question

Quizplus · Accepted Answer

Flame hardening can lead to overheating and grain growth, controlling the case depth precisely can be challenging, and it is generally more suitable for symmetric components, making all of the options correct disadvantages of the process.

One of the Following Is Main Disadvantage of Flame Hardeing