Product category:
Threading tools
News Release from: LMT Fette | Subject: IQ Plus taps
Edited by the Manufacturingtalk Editorial
Team on 06 September 2007
Nano coatings extend thread tap life by
30-50%
A multi-layer nano-structured coatings on taps being used to thread blind or through holes, in steels, heat resistant, stainless and tool steels, extend production life by between 30-50%.
LMT Fette IQ Plus taps, which are coated with multi-layer nano-structured coating have an extended useful life of 30-50%, when compared with conventional TiCN coated taps The taps produce threads in through or blind holes in steel, heat resistant, stainless and tool steels as well as nitriding and structural steels
This article was originally published on Manufacturingtalk on 20 Aug 2008 at 8.00am (UK)
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The coating adapts to the cutting conditions to provide a more consistent and predictable process, said LMT Fette.
LMT (UK) based in Coventry, is now offering the IQ Plus taps in M6 to M14, and in UNF and UNC, between 1/4in and 5/8in.
* Nano 'intelligent' coatings - the multi-layer nano-structured coatings have a highly wear resistant base layer adhered to the substrate of the insert with a softer, but tougher IQ Plus sputter coating fused into its surface.
Under cutting conditions and following a few passes in contact with the material being processed, the IQ Plus coating is subjected to micron-compression.
This has the effect of 'running in' or smoothing the outer coated surface that reduces the co-efficient of friction which in turn reduces the torque requirement for the process.
Both the soft and hard layer then interact to provide a more consistent performance demonstrating lower wear factors on the tool and so increase the production life.
In recent trials on 42 CrMo4 steel, a M10 x 1.5 IQ Plus tap was run at 25m/min to a depth of 24mm using a soluble coolant.
When compared against the usable life of a standard TiCN coated tap of 1,800 holes, this was improved by 44% to 2,600 holes with IQ Plus.
Typical speeds with IQ Plus, with or without coolant on plain carbon and free cutting steels, are between 30 and 40m/min and heat treatable and case hardening steels between 20 and 30m/min.
Stainless steels can be machined using coolant at between 15 and 20m/min and nitriding and tool steels between 12 and 16m/min.
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