Product category:
Metals and materials, stockholding
News Release from: Van Leeuwen Wheeler | Subject: Hollow bar standards
Edited by the Manufacturingtalk Editorial
Team on 17 August 2007
Hollow bar standard will extend choice
Users of hollow bar feedstock will gain more choice and greater flexibility in sourcing when the new European Standard for Hollow Bar, EN 10294 - 1 applies, said a metals stockholder.
Metals stockholder Van Leeuwen Wheeler (VLW) is preparing for the new European Standard for Hollow Bar, EN 10294 - 1 The company has expressed its major commitment to holding stocks produced to the new standard
This article was originally published on Manufacturingtalk on 24 May 2005 at 8.00am (UK)
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It believes the new standard will result in greater choice and increased flexibility when sourcing hollow bar feedstock.
Although hollow bar ihas become established feedstock for machining, since its introduction some 60 years ago, alack of accepted standards has had disadvantages.
Differences occur between proposed and guaranteed clean turned dimensions and weight for a given tube size according to the tube manufacturer.
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Van Leeuwen Wheeler's UK general sales manager, David Jenkins, is leading a Europe-wide project team for VLW's parent the Van Leeuwen Group to introduce the new Euro standard to its markets.
He said: "With manufacturers defining their own clean-turned sizes, customers can be confined to a single manufacturing source to be sure of a uniform dimensional accuracy.
A harmonised standard removes these sourcing restrictions and by ensuring that all hollow bar can be manufactured to the same specification, introduces a much greater flexibility to the market.
This flexibility also extends to the size range available.
With a substantially increased size range and new intermediary sizes, manufacturers will be able to specify feedstock which is dimensionally closer to the finished component, reducing machining and its associated waste." The new Euro standard defines 'nominal size' as the guaranteed turned size able to be produced with external chucking and machinists can order feedstock by the nominal size (OD x ID) of the parts they intend to produce.
The standard applies to machining lengths shorter than three times the OD or shorter than 200mm, where 3xOD is greater than 200mm.
The range of cleaned turned sizes is scaled in steps of 5mm, 10mm and 20mm.
For the metals stockholders like VLW, they will be able to take advantage of the wider purchasing opportunities offered by the new standard.
VLW's range is based on a superior grade of hollow bar which offers increased strength performance, improved machining characteristics and greater tool life.
The supply operation is backed up by a full technical support and accurate cutting facilities are also available at Van Leeuwen Wheeler's Brierley Hill and Middlesbrough warehouses in the UK.
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