| SUBSTANTIAL MATERIAL SAVINGS When a thread is produced by rolling, material savings are inevitable. A rolled thread requires a smaller blank. The finished part's major thread diameter is produced by the outward flow of displaced material. On the other hand, a cut thread's blank diameter and thread diameter are equal to one another. Thread rolling produces no waste material. The table below clearly shows the tremendous savings inherent in the thread rolling process. |
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The thread rolling dies of today are ground and polished to exacting specifications. So extreme accuracy is always a reality. In fact, maintaining a pitch diameter tolerance of .001" can be held. But the major advantage thread rolling has over all other types of thread production, is the ability to remain extremely accurate over very long production runs. The key is in the die. A thread rolling die does not erode over time because the contact point is not concentrated on a sharp cutting edge, but is instead distributed over a broad surface. Also, the thread rolling process itself is relatively friction free, so adhesion does not case problems either, Therefore, if each of the blank's dimensions are uniform, the first part produced will be the same as the one thousandth part produced.
FASTER
No other thread producing method can touch rolling in the speed department. Whether
a production run involves small or large quantities, the labor savings are tremendous.
OTHER COST-SAVING FEATURES
- Thread Rolling Dies do not require sharpening. No down time for sharpening or resetting.
- Thread Rolling's uniformity saves money on inspection labor.
- Rolling can be performed on the collect end behind a part's shoulder, often saving a secondary threading operation.