A number of factors drive the selection of process parameters in Laser Powder Bed Fusion (LPBF). In this invaluable resource Marc Saunders, Renishaw plc’s Director of Global Solutions Centres, details how these parameters define the ‘operating window’ in which AM users must work, and offers advice on identifying the ideal process parameters for metal AM parts. The sensitivity of the process to changes in part geometry is also considered, along with how this may drive part developers towards application-specific parameter choices [First published in Metal AM Vol. 4 No. 2, Summer 2018]
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As the new Formula 1 season gets underway, Additive Manufacturing will have played a vital role in the development and manufacture of the cars on track. Metal AM magazine’s Nick Williams recently visited Sauber Motorsport AG at its headquarters near Zürich, Switzerland, and discovered how a partnership with Dutch AM technology supplier Additive Industries has supported both the development of in-house AM applications and an expansion of Sauber Motorsport’s AM services for third parties [First published in Metal AM Vol. 4 No. 1, Spring 2018]
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Sweden’s Digital Metal® has enjoyed a significant increase in its profile over the last year. This was achieved, in part, by a major brand relaunch, but more significant was the move to begin selling its machines to third parties, rather than offering AM component manufacturing solely in-house. Metal AM magazine’s Emily-Jo Hopson reports on the evolution of the company, its unique approach to developing its technology and the benefits of being owned by the world’s largest producer of metal powders [First published in Metal AM Vol. 4 No. 1, Spring 2018]
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One of the goals for the metal Additive Manufacturing industry is the automated series production of components through a streamlined manufacturing process. Such an ambitious goal faces a major obstacle: the challenge of powder removal. Joseph Kowen reviews some of the significant risks facing AM producers at this stage of the process, from health and safety considerations to the impact on quality and productivity, and highlights some of the technologies being developed to address them [First published in Metal AM Vol. 4 No. 1, Spring 2018]
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The formnext powered by TCT exhibition, held from November 14-17, 2017, in Frankfurt, Germany, featured a parallel four-day conference that addressed a wide range of issues of relevance to the Additive Manufacturing community. Besides technical and application innovations, a whole day of the conference was devoted to business considerations and expectations relating to the future development of the AM industry. In this exclusive report for Metal AM magazine, Dr Georg Schlieper highlights a number of key business-related considerations for the future of the industry
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Some companies approach Additive Manufacturing as a drop-in replacement for conventional manufacturing technologies. This approach, however, does not take into account the unique possibilities that additive processes offer and can result in parts that are not commercially viable due to cost. By designing parts specifically for AM, companies can reduce costs and improve efficiency while taking advantage of the possibilities offered by the technology. In this report, Olaf Diegel and Terry Wohlers look at the impact of good AM part design on machine operating costs [First published in Metal AM Vol. 4 No. 1, Spring 2018]
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Additive Manufacturing continues to gain a reputation as a key technology that will have a major impact on all aspects of mechanical engineering. Under the guidance of Major Ryan O’Hara, the United States Air Force’s (USAF) Air Force Institute of Technology (AFIT), based in Dayton, Ohio, has expanded its AM-focused education and R&D capabilities with the purchase of a Laser Powder Bed Fusion system from Germany’s Concept Laser. In the following article, AFIT’s Benjamin Doane and colleagues highlight work done at the institute to develop AM test bed components to support a high temperature testing programme [First published in Metal AM Vol. 4 No. 1, Spring 2018]
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More than 600 international metal AM professionals gathered in October for the 1st Munich Technology Conference. Organised and sponsored by Oerlikon, the aim of this unique event was to provide a dedicated platform for the discussion and sharing of best practices in AM production and applications, along with the business models needed to drive the industrialisation of AM. We invited Prof Dr-Ing Michael Zäh, Chair of Machine Tools and Production Technology at the Technical University of Munich, to consider the status of metal AM as revealed over the event’s two days of presentations and discussions [First published in Metal AM Vol. 3 No. 4, Winter 2017]
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A technical session at the Euro PM2017 conference, held in Milan, Italy, October 1-5, 2017, investigated three different concepts in processes that combine metal Additive Manufacturing with Hot Isostatic Pressing (HIP). In the following report, Dr David Whittaker reviews three papers that consider the use of SLM for the manufacture of HIP capsules, HIP as a final densification process in AM, and finally HIP as a process to join EBM processed components into larger structures [First published in Metal AM Vol. 3 No. 4, Winter 2017]
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In recent years much effort has been put into developing powders that are optimised for AM processes. As a result, a far greater understanding of the complex requirements for powders now exists. Particle size is widely recognised as a key property, but there is also an appreciation that particle shape has an important role to play. As Malvern Panalytical’s Debbie Huck-Jones and Cathryn Langley, explain, finer particles are advantageous from the perspective of packing behaviour, but are typically associated with poor flowability, compromising processing efficiency. Controlling particle shape can help to alleviate this problem [First published in Metal AM Vol. 3 No. 4, Winter 2017]
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In addition to the parallel Metal Powder Industries Federation’s AMPM2017 conference, the programme for the POWDERMET2017 International Conference on Powder Metallurgy & Particulate Materials, Las Vegas, June 13-16, 2017, included technical sessions on AM. Two of these sessions were devoted to powder production methods for AM feedstocks and this report from Dr David Whittaker reviews three selected papers in this subject category [First published in Metal AM Vol. 3 No. 4, Winter 2017]
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Over the past decade Honeywell has been a leader in accelerating the adoption of metal Additive Manufacturing in the aerospace industry. With dedicated facilities in five countries, the company is at the forefront of the development of new commercial aerospace applications and the supply chain needed to implement series production. Dr Dhruv Bhate, Associate Professor in the Polytechnic School at Arizona State University, visited Honeywell’s Phoenix facility on behalf of Metal AM magazine and met with Donald Godfrey, an Engineering Fellow at Honeywell and the person most credited with initiating and directing the company’s progress in the field of metal AM [First published in Metal AM Vol. 3 No. 3, Autumn 2017]
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