PRODUCT REVIEWS
Faccin three-roll bending technology for boiler production . fabricators who need rolling versatility with maximum use of the bending force as well as precision in pre-bending and calibration ,” it added .
Force management
In a plate roll , as in any other metalforming machine , the bending capacity is directly proportional to the available force .
The force required to achieve the bending momentum that forms the steel plate depends directly on the distance ( minimum and maximum ) between the lateral rolls . In practice , the bigger the distance between the rolls , the smaller the force that they exert because the leverage effect will be higher at the expense of circularity tolerances .
“ However , machines with rolls at shorter distance need larger hydraulic cylinders ( installed forces and larger structures ) to ensure the same bending capabilities , with the benefit of higher bending accuracy but requiring higher investment . When evaluating whether to invest more in a machine with tighter geometry ( closer rolls ) and higher force tonnage , manufacturers must consider the following factors : the amount of material to be cut at the edge that has not been properly rolled in the pre-bending phase ; the time spent to calibrate the circularity of the shell and the quality of the final product ,” Faccin emphasised .
“ Greater quality and reliability are guaranteed by a machine that provides the maximum promised force by using the hydraulic circuit with medium-low pressures ,” it added .
The Faccin Group is a leading manufacturer of metalforming machines with its three brands ( FACCIN , BOLDRINI and ROUNDO ).
“ We direct all our experience and technology into providing energy-efficient and innovative industry 4.0 products and services ,” it told ISMR . “ Our team can assist customers with new , or existing , metalforming projects by reviewing the application and engineering and providing a higher productivity and ROI solution .” n
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Custom coatings
IHI Ionbond and its partners from industry joined forces with Luleå Technical University in Sweden to establish ALVA2 , a project consortium with competences covering all tribological aspects in hot forming aluminium ( including tool steel , lubrication and surface coatings ). Between August 2019 and July 2022 , the consortium successfully raised the level of understanding about tribological phenomena in hot forming aluminium . Part of their success was in developing and implementing advanced friction modelling into forming simulations .
Ionbond provides PVD , CVD and PACVD wear protection , low friction and decorative coatings . It has 35 service centres in 15 countries in Europe , North America and Asia . It has been involved in this market for over 50 years and offers a broad set of coating technologies .
“ Our focus at Ionbond is to provide both highquality standard coating portfolios for the cutting , moulding and forming tool market and to offer customised solutions for our customers making OEM components . We take on difficult and specialised coating applications and put in the time and energy required to meet such custom coating requirements . We put a large emphasis on product quality and invest significant resources towards quality certifications such as ISO 9001 , ISO 13485 , IATF 16949 and AS 9100 ,” the company told ISMR .
The manufacturer recently released a new White Paper on CVD coatings for components . Chemical vapour deposition ( CVD ), an old deposition technique , is rarely used for coating of components .
“ A common perception is that it can be applied only for coating of cemented carbide cutting inserts and forming tools with subsequent heat treatment . Yet CVD processing temperatures are not necessarily a showstopper for coating a range of steels and other materials used for components of various machinery ,” it outlined in the White Paper . n