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Less is More

CASE STUDIES
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Yes, you can get tighter tolerances and improved performance and cost savings! Awhile back we posted some information on about achieving "extreme tolerances" on our Swiss screw machine components through our proprietary polishing, grinding and lapping processes. We can tighten tolerances beyond what our customer thinks possible and still offer a cost saving to them.

To illustrate the point:

One of our customers requires small pins in high volume (millions + per year). The surface finish of these needles must be perfect (1.6 microinches) and the geometrical form and concentricity tolerance is an extremely tight tolerance (0.3 microinches). Previously, the customer used a specific type of lapping process which still required another process to insure parts met the specifications. Needless to say, the process was time consuming and expensive.

We worked closely with this customer trying different types of grinding medium and lapping processes, but still could not quite reach the demandingly high precision tolerances needed. Until we discovered that instead of grinding, we could polish our way to these tight tolerances using a polishing grindstone.

Lapping our Swiss screw machine parts got us the surface finish we wanted, but caused the screw machine components to be out of concentricity. But, when we polished these tight tolerance parts, we achieved the critical surface finish and the concentricity of the component improved over what the customer currently received.

We saved the customer over 65% in Swiss screw machining costs and improved the surface finish and critical concentricity, simply by eliminating a process

Another added benefit? A simplified production process assures them of on-time delivery – no delays due to multiple processes.

Sometimes less IS more.

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