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MTM0070 Materials engineering
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Calculate the welding current. For the first weld calculate the minimum requirement. Note that the material is galvanized steel, adjust the current accordingly.Transform the calculated current to the % of machine’s nominal current (this was 10.2 kA)
Knowing the material thickness and type, fill the Table in your report and find the following welding parameters from given literature recommendations (Table 1 in the guide).
Which of these other defects can you notice on the cast part?
Calculate drop height ( ) of the drop forging hammer for the first sample (deformation degree , where the hammer should be lifted in order for the test piece to upset from initial height to final height
Check your answer below (error 5-10% allowed). You can give the answer in millimeters, centimeters or meters - just check the feedback for confirmation of correct units. If you wish to use decimal separator, use "."
Calculate drop height ( ) of the drop forging hammer for the third sample (deformation degree , where the hammer should be lifted in order for the test piece to upset from initial height to final height
Check your answer below (error 5-10% allowed). You can give the answer in millimeters, centimeters or meters - just check the feedback for confirmation of correct units.
Calculate drop height ( ) of the drop forging hammer for the second sample (deformation degree , where the hammer should be lifted in order for the test piece to upset from initial height to final height
Check your answer below (error 5-10% allowed). You can give the answer in millimeters, centimeters or meters - just check the feedback for confirmation of correct units.
Which sheet forming operations were used in the manufacturing process of the product shown in the figure?
Calculate clearance between the steel punch and the die z (mm). The material thickness is 1.3 mm, tensile strength 490 MPa, and the type of punch-dependent factor k is 0.01.
where k – punch material-dependent factor s – material thickness, mm; Rm - tensile strength, MPa; tau 1 (τ1) – material shear strength (τ1= Rm x 0.8), MPa.Provide the answer in millimeters with accuracy of three decimal places. Use "." as decimal separator.