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Knowledge Vault

Significant Cost Savings with New Build Strategy & Design

PROBLEM:

Engineers were looking to identify cost savings in an “end-stop key.” The key slid back and forth in a channel, with a pin serving as a “stop.” The legacy part consisted of a stainless steel key, partially drilled, with a grooved pin on one end.

OPPORTUNITY:

Dowel pins are more expensive to produce than alternate designs such as a rolled pin. Rolled pins have a less precise outside diameter than many dowel pins. Orientation may be required of the rolled pin, which can complicate installation. A “Type H” grooved pin was the best solid pin application because it required a less precise hole than a dowel pin, and the grooved end provided a more sturdy grip. An alternate design and build strategy was considered. Die-casting provided sufficiently precise dimensions, with a solid stopping mechanism. With die-casting, there was no pin installation cost, and overall design was more Consistent. In addition, there was no need for operator intervention in pin depth and placement.

SOLUTION:

Using G.L. Huyett engineering and global sourcing, a die-casting contractor was located. Low tooling and setup costs, coupled with the installation and production cost advantages over multiple-piece designs yielded an acceptable part at a fraction of the legacy cost. Overall, the customer’s goal of cost reduction was exceeded by a wide margin.
 


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