(a)
(i) Give one reason for using cutting fluids when machining - Leaving Cert Engineering - Question 6 - 2017
Question 6
(a)
(i) Give one reason for using cutting fluids when machining.
(ii) Give one reason for changing the speed of the chuck when machining on a centre lathe.
(iii)... show full transcript
Worked Solution & Example Answer:(a)
(i) Give one reason for using cutting fluids when machining - Leaving Cert Engineering - Question 6 - 2017
Step 1
Give one reason for using cutting fluids when machining.
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Answer
Cutting fluids are used to help lubricate the cutting process, thus reducing friction, heat production, and wear on the cutting tool.
Step 2
Give one reason for changing the speed of the chuck when machining on a centre lathe.
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Answer
The speed of the chuck may be changed to accommodate the diameter of the workpiece, which ensures efficient machining performance and prevents damage.
Step 3
Give one reason why a lathe cutting tool must be positioned on centre before machining.
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If the cutting tool is not on centre, it may exert uneven forces, leading to poor machining quality and workpiece damage.
Step 4
Identify any three of the lathe parts shown.
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Centre drill
Tailstock
Parting off tool
Step 5
Name this chuck.
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3-jaw self-centering chuck.
Step 6
Name two other methods for holding work on a centre lathe.
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4-jaw independent chuck.
Faceplate.
Step 7
State one safety precaution to be observed when using this type of chuck.
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Always remove the chuck key from the chuck before operating the lathe.
Step 8
What do the letters CAD/CAM stand for?
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CAD/CAM stands for Computer Aided Design / Computer Aided Manufacturing.
Step 9
Describe two advantages of using CAD/CAM technology in industry.
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Precision of product design and manufacture.
Easy alteration of designs, enhancing flexibility in production.
Step 10
State one safety precaution to be observed when operating a CNC lathe.
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Answer
Ensure to perform a simulation of the machining process to ensure no collisions.
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