Your tapping requirement may be unique for various reasons, but one common requirement in all applications is successful tapping. Some examples of why your application may be special...
There are essentially four qualities in successfully designing and manufacturing a tap...
theoretical knowledge and practical experience are intrinsic in this process.
Base material, its heat treatment, and final surface coating are significant factors; but they would be irrelevant without the correct geometry. Tap geometry involves a combination of features tailored to all the above... thread and flute cutting angles, flute pattern, cutting force reduction features. The culmination of these geometrical features is the knowledge we refer to. Our knowledge combined with processes and equipment, allow consideration of all these variables.
These are manifested as: -
All with various taper lead chamfers. A multitude of geometrical variations of the above styles, may include features such as:
Which contribute to the optimum solution.
Fluteless Taps are ideal for high speed production in malleable material such as aluminium. The problem of swarf is eliminated, which is particularly suitable for deep hole tapping. Long life, and consistency are benefits.
We are all aware of thread forms such as ISO, Unified or NPT for example. Of course these are just three of many standard forms. Understanding their principle and function enables us to advise on thread selection for new products. T-TECH manufactures any combination of flank angle, radius or flat crest and root, parallel or taper. We have listed just some of the better known thread forms.
Here is a guide to the information required. Firstly the essential, then essential plus, enabling us to design a more suitable tap for your application.
Essential... thread nominal diameter, eg: 10mm
pitch, eg: 1.25mm
threadform if not already defined,
e.g.: Acme - material being cut - through or blind hole
Essential plus... specific material - length of full thread - allowable thread runout (lead) - access restrictions - machine and work holding type - typical batch volume
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