9/28/2016 | 1 MINUTE READ

Widia´s Disc-Style, Carbide-Tipped Reamer Resistant to Vibration

Originally titled 'Disc-Style, Carbide-Tipped Reamer Resistant to Vibration'
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This reamer uses a single carbide disc and brazed joint, providing a strong connection that is virtually immune to thermal effects during machining operations, the company says.

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Widia’s disc-style, carbide tipped reamer, Top Ream, offers diameters as high as 42 mm (1.65”) and a range of edge preps and geometries. This reamer uses a single carbide disc and brazed joint, providing a strong connection that is virtually immune to thermal effects during machining operations, the company says.

Steel-bodied reamers tend to get banged up on the ends. The center can get nicked or distorted, preventing an accurate regrind, according to Widia. But with carbide, there is always a good center to locate on. The result is a minimum of four “like new” regrinds versus an average of three questionable ones.

A single piece of carbide is inherently more stable and resistant to vibration. The through-hole style has an 18-degree left-hand spiral that does a great job of pushing the chip forward, the company says.

Widia’s WU05PR advanced reaming grade was developed specifically for the demanding tool wear and surface finish requirements encountered in most hole reaming operations. Tests performed over a total cut distance 100 feet (30 m) in length showed an ability to consistently maintain surface finishes of 0.8 micron in 4140 steel alloy and 1.6 microns in gray cast iron, 3× that of TiAlN-coated tools.

One of the best features of the Top Ream, according to the company, is the TRM series´ mounting mechanism, which makes simultaneous contact on the cutting head´s face and taper. A user twists the locking screw and the reamer head pops out, with no need for head-to-body orientation. This provides a strong, vibration-free, and—most importantly—precise reamer interface. 

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