Machining-and-machine-tool-operations Questions Set 33:
What type of motion is involved in a drilling operation?
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The primary function of the interpolator in a CNC machine is to control:
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What is the radial distance from the pitch circle to the top of a tooth called?
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What are point-to-point systems typically used for?
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Which manufacturing process is useful for creating a large number of small holes on a sheet for air ventilation?
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What is the angle between the side cutting edge and the end cutting edge of a tool called?
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In ultrasonic machining (USM), the bottom surfaces of blind holes tend to become concave due to _____
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In an orthogonal cutting test on mild-steel, the following data were obtained:
Cutting speed: 40 m/min
Tool rake angle: 5°
Chip thickness: 1.5 mm
Cutting force: 900 N
Thrust force: 450 N
Using Merchant's analysis, the friction angle during machining will be:
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Calculate the force required for bending a 2 mm thick steel sheet through 90 degrees on a V-bending die with a die opening of 8 times the sheet thickness. The length of the part is 1000 mm and the ultimate tensile strength of the material is 480 MPa.
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Consider a cutting tool designed for flank wear that follows the Taylor Tool Life Equation. The tool is designed for two applications with maximum cutting speeds of 100 m/min and 150 m/min. The exponent constant dependent on the tool material is 1. The tool life for a cutting speed of 100 m/min is found to be 5,000 minutes. What will be the life of the tool for the 150 m/min application? (Considering the tool can be used in only one application)
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