Lapping & Polishing Punch Dies - Case Studies Test Requirements: To produce mirror ?nish on ground parts Component/Material: 2 Punch dies Machine Type: Kemet 15 lapping machine Part A - A temporary ?xture was made to hold the part and used during both lapping and polishing stages. The part was lapped for 10 minutes then inspected, all machine grinding marks had been removed and a uniform lapped ?nish remains. Next the part was thoroughly cleaned using CO42 cleaning ?uid as to not contaminate the polishing stage. Finally the part was polished for 5 minutes. Part B - This part was lapped and polished by hand as the required surface face is small, a ?xture could be made which would allow you to lap and polish multiple parts automatically. Again this part was lapped for 5 minutes to remove al

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