Most Common Issues with Tapping Operations and Ways to Resolve Them
02 December 2021Different kinds of machining processes can be maximised by manufacturing businesses, helping them produce parts and components without any issues. One of these processes is tapping.
Tapping is a machining process that cuts a thread inside a hole. Once this process has been applied to parts and components, the holes generated can be threaded by a cap screw or bolt. Most of the time, this machining process is done through a lathe that can be paired with a computer numerical control machine.
The tapping process is done at the latter parts of manufacturing. Hence, it must be conducted without any issue to avoid wasting time and money. Unfortunately, tapping operations may sometimes boast problems that can only be resolved in select ways. Some of these issues are as follows:
Breaking Tapping Tools
One common issue with tapping operations is the existence of a breaking tapping tool. A tapping tool that has already deteriorated will only break, chip, or crack whenever it is being used. To ensure that the tapping tool will not break, both the machine and the tapping tool must be assessed and replaced whenever necessary. The tapping tool must also be kept sharp so that it can yield great results. Other ways to avoid breaking tapping tools are to check the alignment of the drilled holes and the tools, ensure high-quality drilled holes, and apply the right kind of lubrication.
Failing Tools on Reversal
Another issue with tapping operations is that the tools fail on reversal. One main reason why tapping tools fail on reversal is due to positioning them too tightly. Another reason would be the presence of chips cramming in the tap flutes. To avoid failing tools on reversal, their cutting angle should not be too small. Reducing the pressure and increasing the land’s width can also prevent tap failures. Ultimately, checking the lubrication type and its amount can prevent failing tools on reversal.
Chipping Tap Threads
Chipped threads should not happen whenever tapping processes are conducted. Once these things become evident, then it may mean that your tap and hole are aligned incorrectly. The presence of chipped threads may also happen due to deteriorated tapping tools and poor handling. Resolving this issue can be done by aligning the tap and hole properly, checking the properties of the tap holder and machine, replacing the tapping tool, and handling the necessary tapping tool and workpiece with care.
Torn and Damaged Threads
One more issue with tapping operations is the presence of torn and damaged threads. Torn and damaged threads are caused by slow tapping process, small cutting face angle, and dull tapping tools. The existence of broken threads on the tap can likewise cause torn and damaged threads. To avoid torn and damaged threads, any damaged taps should be replaced. Additionally, checking the cutting face angle before tapping can ensure threads are preserved.
If you want to know more about tapping operations, you can call us at Kinetic Engineering.
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