Metal tapping is a vital fabrication process that creates threaded holes for secure fastening. While the method is widely used, many questions arise about how it works in practice.
What is metal tapping?
It is the process of cutting internal threads into a previously drilled hole with a specialised tool called a tap. The threads allow bolts or screws to be fixed securely. The process is fundamental in industries such as automotive, aerospace and consumer goods manufacturing.
What types of taps are commonly used?
The three main types are taper taps, plug taps and bottoming taps. Taper taps gradually cut threads to begin the process, plug taps handle most of the threading, and bottoming taps create threads to the full depth of a blind hole.
Can tapping be applied to different materials?
Yes. Tapping can be used on metals, plastics and composites. Softer metals like aluminium require careful handling, while harder alloys may need taps with specialised coatings.
What role do machines play?
Although tapping can be done manually, industrial environments often rely on automated solutions. Systems such as Roscamat electric tapping machines, like those seen at //www.cotswold-machinery-sales.co.uk/roscamat-tapping-machines/electric-tapping-machines/roscamat-tiger-electric-tapping-machine/, improve efficiency and reduce operator strain.
How can safety and quality be maintained?
Thread quality depends on using the correct tap size, suitable lubrication and steady cutting speeds. Tapping fluids reduce heat and tool wear. For guidance on best practices in metalworking, see the Health and Safety Executive’s resources.
Tapping is one of the most effective ways of producing threaded holes, combining versatility, precision and reliability across multiple industries.
