Product category:
Tool and cutter grinding
News Release from: Walter GB | Subject: Xtra.tec B40 drill with WXP45 PVD inserts
Edited by the Manufacturingtalk Editorial
Team on 01 January 2007
Drill with carbide coated inserts
extends life
By switching to a Walter Xtra.tec B40 drill with WXP45 PVD carbide coated inserts, a major manufacturer of electro-magnet steel cases has slashed drilling cycle times and extended tool life.
By switching to a Walter Xtra.tec B40 drill with WXP45 PVD carbide coated inserts, a major manufacturer of electro-magnet steel cases has slashed drilling cycle times and extended tool life On one component, drilling time has been cut from 19.6 seconds to an amazing 2.7 seconds, and in the production of 120,000 components has achieved annual time savings of 560 hours
This article was originally published on Manufacturingtalk on 20 Jun 2001 at 8.00am (UK)
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In another example, the company has reduced drilling times from 14.4 seconds to just 2.5 seconds and tool life extended to 2,000 components per tool compared with 1,600 formerly.
Producing 50,000 cases per year, the time savings equate to 166 hours.
In the first example - the creation of an 18 mm diameter hole of 32 mm deep in free cutting steel - the Xtra.tec drill is applied at a feed rate of 0.5 mm/rev rather than 0.1 mm/rev and it completes the hole in 2.5 seconds compared to an indexable insert drill that formerly took 14.4 seconds.
The number of components formerly produced for each of the tool's four cutting edges was around 400 and, as the insert could be indexed four times, 1,600 components were machined by each insert.
Today, however, the Xtra.tec drill with exchangeable two-point tip and helical shank featuring staggered inserts, completes the job in just 2.5 seconds and 2,000 components can be completed.
Walter's Xtra.tec drill has two cutting edges that are in use simultaneously, thus optimally distributing machining forces and demonstrating high stability compared to conventional HSS and solid carbide drills.
Also, the Walter drill's positive cutting edge geometry results in a 'soft' cutting action and low cutting forces.
The second example, on a different workpiece of the same material, concerns the production of a 21 mm diameter hole to a depth of 42 mm and which penetrates an existing parallel bore.
The indexable insert drill formerly used took 19.6 seconds compared with the 2.7 seconds achieved by Walter's Xtra.tec.
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