Partnering With MetalTek Saves Money In Scrap Cost
The valve cage regulates and helps control the flow of fluid through a valve. When supplied as a static casting, defects in the valve cage were often not discovered until much machining had been completed. The results were very high scrap rates and cost. Working with the customer, MetalTek engineers converted the static casting to a centrifugal, incorporating the sand core technology into the design of the existing part. The homogeneous quality of a centrifugal casting reduced hidden defects. The rough casting was designed so that the last machining pass on the I.D. of the part opened the windows, minimizing the number of interrupted machining cuts. This further drove down scrap, which has been reduced by 98%.