Disadvantages Of Thread Rolling
Disadvantages Of Thread Rolling. The cold rolling process has the advantage of providing close tolerance up to 0.025 mm. Rolled screw threads generally possess more strength than ground screw threads due to the significant material strengthening that is achieved as a result of the large plastic deformation induced in the material to create the threads during the rolling process.

Whereas, fatigue strengths of threads produced by other means are lowered by as much as 25% by the. Rolled threads, on the contrary, which are compacted and burnished during threading, are less prone to loosen, and, thus ordinarily have longer fatigue lives. Producing threads by this method has several other benefits over machining.
While The Cutting Thread Requires Multiple Cuttings Of The Workpiece By The Tool To Form, And The Processing Time Is Relatively Long.;
Also, rigid taps are used exclusively for interior threading of holes and cannot be used to. Major diameter undersize and truncated, effective diameter correct. Ultimately, these contribute to the product cost making rolled threaded products, in some cases, more expensive.
The Advantages Can Be Briefly Listed As:
Component is bent after thread rolling. During thread rolling the material is plastically deformed which results in strain hardening, and increased strength. Another disadvantage is that tapping does not allow for adjusting thread fit.
Major And Effective Diameters Undersize.
The same processing time, the production capacity of the cutting equipment is far far less than cold extrusion. Major diameter undersize and truncated, effective diameter oversize. Rolled screw threads generally possess more strength than ground screw threads due to the significant material strengthening that is achieved as a result of the large plastic deformation induced in the material to create the threads during the rolling process.
Studies Of Shown That Thread Rolling Improves The Tensile Strength Of The Material (Metal) By 30% Or More Compared To That Of Traditional Thread Cutting/Grinding Methods.
It creates fatigue resistance in the thread. However, in this process the breadth or width of the strip/sheet remains the same. Producing threads by this method has several other benefits over machining.
What Are The Pros And Cons Of Thread Rolling, Compared To Regular Threading With A Threading Tool.
There are many methods of generating threads, including subtractive methods (many kinds of thread cutting and grinding, as detailed below); The main aim of using this process, is to reduce the thickness of the workpiece by increasing its length. Our extensive “how it works” note, explains the thread rolling process, it’s advantages, and how we help customers engineer their parts to accommodate rolled threads.
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