1. What type of safety precaution we take for the CNC milling part? What would h
ID: 2087149 • Letter: 1
Question
1. What type of safety precaution we take for the CNC milling part? What would happen if we do not subtract the length of the probe for setting part machine zero? Please be specific as 2. We have inferior quality product at the Powder Metallurgy Laboratory. Please indicate the 3. What safety precautions we need to take in the Poswder Metallurgy lab? Please specify and 4. Bending is a forming operation T F? possible. (potential) factors? explain. Asheet metal 3 mm thick and 20 mm long is bent to ?clded angle of60, mi a bend raisof 5. 7.5 mm in an V bending die. The metal has a yield strength of the240 MPa and sensile strength of 360 MPa. Compute the required foroe to bend the partgiven that the die opening dimension is 15 mm. 6. A metal alloy has been tested in a tensile test with the follow ing resulks for the flow curve metal is now tested in a compression test in which the starting height of the specimem 62.5 the load required to compress the specimen to a height of (a)50mb Whwuld be the 7. Anextruder barrel has a diameter of 110 ?andaler g hof30m. The sew channel dem 7.0 mm, and its pitch- 95 mm. The viscosity of the polymer melt is 105 Pa-s and the head parameters: strength coefficient 620.5 MPa and strain hardenge 0262 The sume mm and its diameter 25 mm. Assuming that the cross section increases wniformly, detemmine diameter at 50 mm? in the barrel is 4.0MPa. What rotational speed of the screw is regaired to achieve a 8. What safety precautions we need to take in the Powder Mealurgy lab? Plcase specify and volumetric flow rate of 90 cm/s? explain. rolling mill to a thickness of20 min. The roll has a radius 9. A plate that is 250 mm wide and 25 mm thick is to be redaced in a singlpess in a to-bigh Determine (a) roll force, (b) roll torque, and (c) power required to acoomplish this operation. (backward) extrusion to a 20 mm diameter. The die angle is 90. In the Jobnson equation, 500 mm, and its speed-30mmn The work material has a strength coefficient 240 MPa and a strain hardening expoment 02 10. A cylindrical billet that is 100 mm long and 50 mm in diameter is rediaced by indirect 0.8 and b=14. In the flow curve for the work metal, the strength coefficient 800 Mani strain hardening exponent-0.13. Determine (a) extrusion ratio, (b) true strain (homogeneous deformation), (clextrusion strain, (d) ram pressure, and (e) ram force (0) The power in watts if the ram moves 0.05 m/sec 11. A cup-drawing operation is performed in which the inside diameter S0 mm and the height = 4 mm. Tensile strength = 400 MPa and yield strength = 180 MPa for this sheet metal. Determine (a) drawing ratio, (b) reduction. (c) drawing force, and (d) blankholder force. 50 mm. Stock thickness 3.0 mm, and starting blank diameter 150mm. Punch and die radiiExplanation / Answer
1) Make sure that tool turret is working properly.
Switch on the compressorto supply pressurised air for pneumatic spindle.
Set the coordinates of the workpiece for part programming.
If the probe size is not reduced, the final dimensions will be altered.
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