Question:
The hardening process normally used for the hardening of machine tool guideways is
The hardening process normally used for the hardening of machine tool guideways is
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Induction hardening is widely used for wear-resistant machine components.
Updated On: Jun 29, 2026
- Martempering
- Flame hardening
- Austempering
- Induction hardening
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The Correct Option is D
Solution and Explanation
Concept:
Machine tool guideways require:
• very hard surface
• tough core
• wear resistance Surface hardening techniques are preferred.
Step 1: Evaluate processes.
• Martempering → uniform hardening, not surface specific
• Flame hardening → suitable but less controlled
• Austempering → bainitic structure, not for guideways
• Induction hardening → precise surface heating + quenching
Step 2: Best choice.
Induction hardening provides:
• controlled depth
• minimal distortion
• high wear resistance Final Answer: \[ \boxed{\text{Induction hardening}} \]
• very hard surface
• tough core
• wear resistance Surface hardening techniques are preferred.
Step 1: Evaluate processes.
• Martempering → uniform hardening, not surface specific
• Flame hardening → suitable but less controlled
• Austempering → bainitic structure, not for guideways
• Induction hardening → precise surface heating + quenching
Step 2: Best choice.
Induction hardening provides:
• controlled depth
• minimal distortion
• high wear resistance Final Answer: \[ \boxed{\text{Induction hardening}} \]
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