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Compare the brazed type carbide tool with a throw away insert type tool for the following...


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Compare the brazed type carbide tool with a throw away insert type tool for the following: After 1 hour and 100 pieces both tools have a 0.75 mm wearland. It takes 15 minutes to regrind first tool and 5 minutes to reset it in machine, whereas it requires 1 minute to reindex the second tool. Initial cost of brazed type carbide tool is Rs. 400 and that of tool holder is Rs. 150 and each throw away to costs Rs. 25. Calculate how many more piece can be turned out using second tool than first in an eight-hour day. For how many pieces the overall cost will be same for both the tools. Also calculate the savings with second tool in producing 5000 pieces. Assume labour and overhead rates are Rs. 20 per hour.

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