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How to Eliminate Stress Risers Caused by the Chamfering

Specialty Chamfer Flex-Hones from Brush Research Manufacturing blend and radius sharp edges and remove microburrs on chamfered holes, eliminating stress risers caused by the chamfering operation.

Posted: July 27, 2017

Booth 2408: Specialty Chamfer Flex-Hones from Brush Research Manufacturing blend and radius sharp edges and remove microburrs on chamfered holes, eliminating stress risers caused by the chamfering operation. They polish and radius the outer corners (the intersection of the chamfer and flange face) as well as the inner corners and hole. The tool can pass through thin-web sections and polish the chamfer on the back side as well to eliminate hand finishing and produce consistent finishes from hole to hole, part to part.

In Booth 2408, a new line of specialty Chamfer Flex-Hones from Brush Research Manufacturing Co. Inc. (BRM; Los Angeles, CA) are designed to blend and radius sharp edges and remove microburrs on chamfered holes, eliminating stress risers caused by the chamfering operation. Standard Flex-Hone tools are very effective on the interior corners (the intersection of the chamfer and the hole wall). Our new series of tools are more flexible and designed to polish and radius the outer corners (the intersection of the chamfer and flange face) as well as the inner corners and hole. The increased flexibility allows the tool to pass through thin-web sections and polish the chamfer on the back side as well. The Flex-Hone tool eliminates hand finishing operations and produces consistent finishes from hole to hole, part to part.

In the aerospace, automotive, semiconductor and medical sectors it is vital that fastener through-holes are chamfered and free of metal burrs caused by the hole cutting process to ensure a flawless fit and durability when parts are assembled. With this in mind, progressive manufacturers are increasingly automating this process by incorporating the Flex-Hone® to provide a smooth finish without hand benchwork. Available in a variety of grit sizes and abrasive types, this tool is suitable for finishing titanium, Inconel, and nickel-based stainless steel alloys.

Brush Research Mfg. Co. Inc., 4642 Floral Drive, Los Angeles, CA 90022, 323-261-2193, Fax: 323-268-6587, sales@brushresearch.com, www.brushresearch.com.