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Toolholders Perform Deep Face-Grooving
01 Mar 2002
Small-diameter deep face-grooving is acknowledged as one of the most demanding metalworking operations because of the difficulty providing sufficient support for the inserts while enabling swarf to exit and coolant to reach the work area. Special toolholders are being used by Benham Manufacturing, Southampton, to perform deep face-grooving on aluminium bronze components to tolerances of just 0.02mm.
The components produced by Benham, an impeller reprimer for aircraft fuel pumps, require a 34mm deep groove with a 25mm OD and 16mm ID to leave a central boss. The company ordered 12 special toolholders from Advanced Carbide Tooling, to help them produce 576 components in nine batches over a 12 month period.
Two types of toolholder are being used. Roughing cuts are performed with a square-end insert, while the finishing insert has radiused corners to form a radius at the base of the groove. The toolholder design allows good swarf removal, so greatly reducing tool breakage and ensuring consistent, accurate machining.
www.advancedcarbidetooling.co.uk
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