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6.1 Briefly describe the working principle of the following machines used in the welding workshop: 6.1.1 Guillotine 6.1.2 Bending rolls 6.2 What is the primary function of the regulators fitted to the gas cylinders of the oxy-acetylene equipment? 6.3 What is the press machine used for in the mechanical workshop? 6.4 FIGURE 6.4 below shows the MIG/MAGS welding process - NSC Mechanical Technology Welding and Metalwork - Question 6 - 2018 - Paper 1
Question 6
6.1 Briefly describe the working principle of the following machines used in the welding workshop: 6.1.1 Guillotine 6.1.2 Bending rolls 6.2 What is the primary fu... show full transcript
Worked Solution & Example Answer:6.1 Briefly describe the working principle of the following machines used in the welding workshop: 6.1.1 Guillotine 6.1.2 Bending rolls 6.2 What is the primary function of the regulators fitted to the gas cylinders of the oxy-acetylene equipment? 6.3 What is the press machine used for in the mechanical workshop? 6.4 FIGURE 6.4 below shows the MIG/MAGS welding process - NSC Mechanical Technology Welding and Metalwork - Question 6 - 2018 - Paper 1
Step 1
6.1.1 Guillotine
Answer
The guillotine operates using a fixed bottom cutting blade, which is positioned horizontally. It employs a top cutting blade that descends downwards, powered by an electric motor. The system includes a flywheel, gearbox, and an axle. Motion is created by an eccentric mechanism or through hydraulic action, allowing for precise cuts. The guillotine can be activated either manually via a foot pedal or with lever action.
Step 2
6.1.2 Bending rolls
Answer
Bending rolls consist of two fixed rollers positioned parallel to each other, which rotate in unison. The operation can be conducted manually or electrically. An additional adjustable roller is located between the two fixed rollers. This third roller applies downward pressure onto the metal, enabling it to bend and take on the desired rounded shape.
Step 3
6.2 Regulators on gas cylinders
Answer
The primary function of regulators attached to gas cylinders in oxy-acetylene equipment is to reduce the cylinder pressure to a more manageable level for safe use. This is crucial for operating equipment properly and ensures that the working pressure is maintained during use.
Step 4
6.3 Press machine
Answer
The press machine serves as a critical tool in mechanical workshops, primarily used for installing or removing components from mechanical devices or machines. It specifically enables the pressing of profiles onto material, facilitating operations such as forming, shaping, or assembly.
Step 5