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Describe any one of the following work holding methods used on the lathe - Leaving Cert Engineering - Question b - 2009
Question b
Describe any one of the following work holding methods used on the lathe. Four jaw independent chuck, Fixed steady, Faceplate. State a suitable safety precaution t... show full transcript
Worked Solution & Example Answer:Describe any one of the following work holding methods used on the lathe - Leaving Cert Engineering - Question b - 2009
Step 1
Describe any one of the following work holding methods used on the lathe: Four jaw independent chuck.
Answer
The four jaw independent chuck consists of jaws that can move independently of one another, allowing optimal gripping of various shapes. Each jaw is adjusted using its own screw, enabling it to hold square, round, rectangular, and irregular shapes effectively. It is vital to ensure that excessive speeds are not used when machining on a four jaw chuck to prevent potential damage to both the workpiece and the machine.
Step 2
State a suitable safety precaution for the work holding method selected.
Answer
When using a four jaw independent chuck, it is important to check that all jaws are securely tightened before starting the machine. This helps to prevent the workpiece from loosening or being ejected during the machining process, which can pose significant safety risks.