Thread rework is an important process that helps keep a CNC turning machine running smoothly. By repairing or modifying threads, it’s possible to avoid damage, change the size or pitch of the thread, or tap a new thread. While it might seem like a daunting task, proper thread rework in the machine shop is critical to maintaining CNC lathe service.
In this blog post, we’ll cover the basics of thread rework in a CNC turning machine, including why it’s important, how to properly perform it, and what benefits and drawbacks to keep in mind. By the end, you should have a good understanding of how to keep your CNC turning machine running smoothly with thread rework.
Why Thread Rework Is Important In A CNC Turning Machine?
One of the most important reasons to perform thread rework is to avoid damage to the threads. Over time, threads can become damaged from wear and tear, or from debris or other foreign objects getting caught in the threads. If left unrepaired, damaged threads can cause the CNC turning machine to malfunction or even break down completely. By performing regular thread rework, you can avoid costly repairs or replacements down the road.
Another reason to perform thread rework is to change the size or pitch of the thread. This can be necessary if the original thread is too small or too large for the current application, or if the pitch needs to be changed for a new application. By performing thread rework, you can ensure that the CNC turning machine is using the proper size and pitch for the current application, which can help improve performance and avoid problems down the road.
Finally, performing thread rework can also be necessary when tapping a new thread. This is often required when a new component is added to the CNC turning machine, or when an existing component is removed and replaced with a new one. By performing thread rework, you can ensure that the new component is properly threaded and can be securely attached to the CNC turning machine.
How To Properly Perform Thread Rework In A CNC Turning Machine?
In this section, we’ll cover the basics of how to properly perform thread rework in a CNC turning machine. First, it’s important to remove any damaged threads before beginning the repair or modification process. This can be done with a tap remover, a thread file, or a die grinder. Once the damaged threads have been removed, you can then begin repairing or modifying the threads as needed.
To repair a thread, start by cleaning out any debris or foreign objects that might be caught in the thread. Next, use a thread file or die grinder to remove any burrs or damaged areas. Once the threads are clean and smooth, you can then begin the repair process.
To do this, start by winding a length of thread repair wire around the threads. Next, use a torch to heat the wire until it’s glowing red hot. Finally, quench the wire in a bucket of water to cool it and harden the repair.
To modify a thread, start by determining the desired size and pitch of the thread. Next, use a tap to cut new threads into the metal, making sure to follow the proper size and pitch specifications. Once the new threads have been cut, you can then test them by screwing in a bolt or other fastener. If the new threads are too small or too large, you can repeat the tapping process until the desired size and pitch are achieved.
To tap a new thread, start by cleaning out any debris or foreign objects that might be caught in the old thread. Next, use a die grinder or thread file to enlarge the hole slightly. Once the hole is slightly enlarged, you can then begin tapping the new thread.
By following these simple steps, you can easily perform thread rework on a CNC turning machine. By regularly performing this maintenance, you can avoid costly repairs or replacements down the road.
What Benefits And Drawbacks To Keep In Mind?
There are several benefits to performing thread rework on a CNC turning machine.
First, it can help to avoid costly repairs or replacements down the road. Second, it can ensure that the CNC turning machine is using the proper size and pitch for the current application, which can improve performance and avoid problems. Finally, performing thread rework can also be necessary when tapping a new thread, which can be required when a new component is added to the CNC turning machine.
There are also a few drawbacks to keep in mind when performing thread rework. It can be time-consuming to remove damaged threads and tap new ones.
If not done carefully, it is possible to damage the threads beyond repair. Also, it is important to make sure that the new thread is the proper size and pitch for the application, or else problems can occur.
