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3.1 Describe the filing process as easy or difficult when conducting a file test for hardness on the following materials: 3.1.1 Cast steel 3.1.2 Mild steel 3.1.3 High-speed steel 3.2 FIGURE 3.2 shows the annealing process during heat treatment - NSC Mechanical Technology Welding and Metalwork - Question 3 - 2021 - Paper 1
Question 3
3.1 Describe the filing process as easy or difficult when conducting a file test for hardness on the following materials: 3.1.1 Cast steel 3.1.2 Mild steel 3.1.3 ... show full transcript
Worked Solution & Example Answer:3.1 Describe the filing process as easy or difficult when conducting a file test for hardness on the following materials: 3.1.1 Cast steel 3.1.2 Mild steel 3.1.3 High-speed steel 3.2 FIGURE 3.2 shows the annealing process during heat treatment - NSC Mechanical Technology Welding and Metalwork - Question 3 - 2021 - Paper 1
Step 1
Describe the filing process as easy or difficult when conducting a file test for hardness on the following materials: Cast steel
Answer
The filing process for cast steel is considered difficult due to its harder structure, which resists abrasion and makes it challenging to achieve a uniform finish.
Step 2
Describe the filing process as easy or difficult when conducting a file test for hardness on the following materials: Mild steel
Answer
In contrast, the filing process for mild steel is considered easy, as its softer composition allows for faster material removal and better control during filing.
Step 3
Describe the filing process as easy or difficult when conducting a file test for hardness on the following materials: High-speed steel
Answer
The process is difficult for high-speed steel because it is specifically designed to retain hardness even at elevated temperatures, making it challenging to file.
Step 5
Describe how a bending test is conducted to determine the properties in a test metal.
Answer
To conduct a bending test, the test piece is bent around a mandrel or bar at a specific angle until a rupture occurs. The material is then placed in a vice to facilitate bending, and the ductility of the material is subsequently observed.
Step 6
Step 7