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2016 DOOSAN Lynx 300M.
Bar capacity 76mm, 
chuck size 10in, 
Fanuc control, 
max turning length 765mm, 
milling motor p
Bar capacity 76mm, chuck size 10in, Fanuc control, max turning length 765mm, milling motor p...
Craig Strong Machine Tools Ltd

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3-D printing collaboration bears fruit

Posted on 01 Aug 2020 and read 508 times
3-D printing collaboration bears fruitUS-based Honeywell and SLM Solutions have reached an important milestone in their joint development and qualification of aluminum parts 3-D printed with high layer thicknesses.

Newly developed parameter sets for aluminum alloy F357, a new beryllium-free version of AlSi7Mg0,6 (A357), lead to considerably improved material properties compared to parts produced through die-casting. The work between Honeywell and SLM Solutions aims to reduce manufacturing times and costs to produce 3-D printed aircraft components that meet the high requirements of the aerospace industry.

As part of the collaboration that kicked off in 2019, Honeywell began qualification efforts for aluminum builds using an increased layer thickness of 60 and 90µm on their quad-laser SLM 500 Selective Laser Melting Machine.

SLM Solutions provided generic aluminum parameter sets for Honeywell to complete material qualification to achieve optimal material properties. The development of these new parameter sets for aluminum alloy F357 using a layer thickness of 60µm and 700W lasers has now reached an important milestone.

Material properties have significantly increased in comparison to conventional die-cast parts and are now exceeding overall acknowledged metallic properties for aerospace.

Aluminum alloy F357 is not only lightweight but offers a significantly better corrosion resistance and desired mechanical properties, such as high-strength across a wide temperature range in comparison to conventional aluminum alloys.

It has a great weldability and excellent suitability for post-processing, like mechanical machining or electrochemical such as anodising. This combination of properties enables F357 to be perfectly suited for thin walled and complex structures in, for example, the aerospace or automotive industry.

Dr Sören Wiener, senior director technology and advanced operations at Honeywell Aerospace, said: “In particular, the open architecture system of the SLM machine provides huge advantages like high flexibility and parameter sets can be customised. With this open access strategy and the great support of SLM Solutions, we step forward to achieving our next goals.”

Benjamin Haas, SLM Solutions product manager for materials and parameters, said: “It is a privilege to work together with one of the leading companies in the aerospace world. This way, we can learn a lot from each other leading to perfectly suited, industry proven solutions from which all of our customers can benefit.”