95. Explain the difference between roughing and finishing operations in machining. 96. What is a lathe machine? Describe

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95 Explain The Difference Between Roughing And Finishing Operations In Machining 96 What Is A Lathe Machine Describe 1 (175.12 KiB) Viewed 61 times

95. Explain the difference between roughing and finishing operations in machining. 96. What is a lathe machine? Describe its main parts and operation. Give two types of lathe machines 97. What is a milling machine? Describe its main parts and its operation. Give two types of milling machines 98. Name and briefly describe the four types of chips that occur in metal cutting. 99. Identify the four forces that act upon the chip in the orthogonal metal cutting model but cannot be measured directly in an operation. 100. Identify the two forces that can be measured in the orthogonal metal cutting model. 101. What is the relationship between the coefficient of friction and the friction angle in the orthogonal cutting model? 102. How is the power required in a cutting operation related to the cutting force? 103. What are the differences between rotational parts and prismatic parts in machining? 104. Distinguish between generating and forming when machining workpart geometries. 105. Give two examples of machining operations in which generating and forming are combined to create workpart geometry. 106. Describe the turning process. 107. What is the difference between threading and tapping? 108. Name the various ways in which a workpart can be held in a lathe.