4.1 Which ONE of the following is an advantage of the tailstock set-over method for taper turning on the centre lathe?
A Long tapers can be cut
B Internal tapers can be cut
C Tapers with large included angles can be cut
D Large cuts can be done
4.2 Identify the milling process in FIGURE 4.2 below - NSC Mechanical Technology Fitting and Machining - Question 4 - 2019 - Paper 1
Question 4
4.1 Which ONE of the following is an advantage of the tailstock set-over method for taper turning on the centre lathe?
A Long tapers can be cut
B Internal tapers ca... show full transcript
Worked Solution & Example Answer:4.1 Which ONE of the following is an advantage of the tailstock set-over method for taper turning on the centre lathe?
A Long tapers can be cut
B Internal tapers can be cut
C Tapers with large included angles can be cut
D Large cuts can be done
4.2 Identify the milling process in FIGURE 4.2 below - NSC Mechanical Technology Fitting and Machining - Question 4 - 2019 - Paper 1
Step 1
Which ONE of the following is an advantage of the tailstock set-over method for taper turning on the centre lathe?
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Answer
The advantage of the tailstock set-over method for taper turning is that it allows for more accurate and adjustable tapers to be produced. Specifically, option B states that internal tapers can be cut, which is a significant advantage over other methods.
Step 2
Identify the milling process in FIGURE 4.2 below.
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Answer
The milling process depicted in FIGURE 4.2 is best identified as 'Gang milling' (Option B). This process involves using multiple milling cutters simultaneously to produce various profiles on a workpiece.
Step 3
Which indexing process using the universal dividing head will be the easiest method to cut a gear with 30 teeth?
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Answer
The easiest indexing process to cut a gear with 30 teeth would be 'Simple indexing' (Option B). This method simplifies the calculation and allows for quick setup and operation.
Step 4
What is meant by the term incremental programming on a three-axis digital read-out system on a computer numeric control (CNC) machine?
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Answer
Incremental programming refers to a method where each movement is defined concerning the last position, often starting from a reference point such as the 'zero point' (Option B). This allows for greater flexibility and accuracy in machining operations.