When you’re new to using a tapping machine, it can be a challenge to tap threaded holes accurately and without waste. But you can transform a blank piece of metal into a perfectly threaded custom piece, ready for assembly.
Why threaded holes need to be perfect
The art of using electric tapping machines to make perfect threaded holes is vital to creating strong and reliable connections in any type of project. But it can be difficult to achieve the perfect result, even as a more skilled machinist. Here’s what you need to know.
Use the right tools
Make sure you’re using quality equipment, such as electric tapping machines from https://www.cotswold-machinery-sales.co.uk/roscamat-tapping-machines/electric-tapping-machines/roscamat-tiger-electric-tapping-machine/, and quality drill bits. This provides your foundation.
Start with the initial hole
The initial hole must be drilled to the correct diameter, using a tap drill charge. This will ensure the resulting threads fit and engage correctly. You can use a drill press for larger pieces and greater precision or a handheld drill for smaller, less precise jobs.
Use the correct taps
Each available tap has a particular role in the threading purpose, so be sure to use the right ones. Taper taps begin the threatening and cut over the initial threads. Plug taps are typically used next, over a shorter cut length to continue the thread. The bottom tap is then used to thread a blind hole, where the thread must extend into the material as far as possible, and only cut the last few threads.
Wear your safety gear
Safety glasses and gloves are health and safety essentials, to ensure no metal filings fly up and cause damage. Ensure you’re wearing your full and correct PPE.
Have your extras in place
You’ll need your wrench or tap shank to turn and hold the tap as you thread it to keep everything in place with the right pressure. Remember to apply cutting fluid to the hole and tap before you begin the process, so that it works smoothly.
These tips will all help you to get better tapping results!