An engineer would like to drill a square hole of 20 mm x 20 mm with depth of (a) 25 mm on a layered structure of natural fibre-reinforced polymer composite. He encountered delamination problem in the workpiece (Figure 3) when he used conventional cutting tool to drill the hole. Instead of using conventional machining process, discuss ONE suitable advanced machining process that can be applied for this machining purpose and predict TWO possible limitations for the selected process. Q3. (Word limit: ~100) Cutting Tool

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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UEME1233 MANUFACTURING TECHNOLOGY I
(а)
25 mm on a layered structure of natural fibre-reinforced polymer composite. He
encountered delamination problem in the workpiece (Figure 3) when he used
conventional cutting tool to drill the hole. Instead of using conventional
machining process, discuss ONE suitable advanced machining process that can
be applied for this machining purpose and predict TWO possible limitations for
the selected process.
Q3.
An engineer would like to drill a square hole of 20 mm x 20 mm with depth of
(Word limit: ~100)
Cutting
Tool
Delamination
– Composite Material
Figure 3. Delamination of the composite material.
A resistance welding is performed to join two 2-mm thick stainless steel sheets
(b)
with ten 6-mm diameter spot welds produced concurrently. The resulted weld
nugget each has average 3 mm in thickness. Calculate the required welding
current and energy consumption for the welding if ten seconds are needed for
the whole welding operation. Given that the applied voltage is 10 V. Provide
TWO important assumptions in your calculation.
An arc welding is performed to join two metal pieces. After the welding process,
(c)
the product is subjected to fatigue test. Discuss which part of the weld joint will
have high potential to experience fatigue failure.
(Word limit: ~50)
Transcribed Image Text:5 UEME1233 MANUFACTURING TECHNOLOGY I (а) 25 mm on a layered structure of natural fibre-reinforced polymer composite. He encountered delamination problem in the workpiece (Figure 3) when he used conventional cutting tool to drill the hole. Instead of using conventional machining process, discuss ONE suitable advanced machining process that can be applied for this machining purpose and predict TWO possible limitations for the selected process. Q3. An engineer would like to drill a square hole of 20 mm x 20 mm with depth of (Word limit: ~100) Cutting Tool Delamination – Composite Material Figure 3. Delamination of the composite material. A resistance welding is performed to join two 2-mm thick stainless steel sheets (b) with ten 6-mm diameter spot welds produced concurrently. The resulted weld nugget each has average 3 mm in thickness. Calculate the required welding current and energy consumption for the welding if ten seconds are needed for the whole welding operation. Given that the applied voltage is 10 V. Provide TWO important assumptions in your calculation. An arc welding is performed to join two metal pieces. After the welding process, (c) the product is subjected to fatigue test. Discuss which part of the weld joint will have high potential to experience fatigue failure. (Word limit: ~50)
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