Exam Question
Describe following metal finishing processes and objectives;
(a) Honing (4)
(b) Lapping (4)
(c) Polishing (4)
(d) Buffing (4)
Class 4 (4th Engineer)
MEP
📅 Jan 2023
Reference Answer
### (a) Honing (4 Marks)
**1. Process Description:**
Honing is an abrasive machining process used to finish internal bores with high precision. It employs a tool called a honing head, which is fitted with abrasive stones (hones). The process involves a combined rotating and reciprocating motion of the honing head inside the workpiece bore. A copious amount of low-viscosity cutting fluid is used to cool the workpiece and flush away the machined particles (swarf).
* **Tool:** A honing head with radially expandable abrasive stones made from materials like Aluminium Oxide, Silicon Carbide, or diamond.
**1. Process Description:**
Honing is an abrasive machining process used to finish internal bores with high precision. It employs a tool called a honing head, which is fitted with abrasive stones (hones). The process involves a combined rotating and reciprocating motion of the honing head inside the workpiece bore. A copious amount of low-viscosity cutting fluid is used to cool the workpiece and flush away the machined particles (swarf).
* **Tool:** A honing head with radially expandable abrasive stones made from materials like Aluminium Oxide, Silicon Carbide, or diamond.
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