In the last part of this series, we discussed a variety of general industrial product manufacturers that have begun to adopt 3D printing along the road from prototyping to end part manufacturing. Now, we’ll begin to look at service bureaus that 3D print general industrial goods for their customers. Because there are a number of service bureaus capable of producing parts for industrial product makers, we’ll limit our exploration to just those who market themselves for industrial goods specifically, or are otherwise aligned in such a way that they are already close to the industrial sector.
Kennametal is a tooling and materials supplier that has found a position in the AM space as a metal powders and AM services provider. The company makes powders for metal powder bed fusion (PBF), directed energy deposition (DED) and bound metal 3D printing (think Markforged and Desktop Metal’s desktop metal systems). These materials include gas-atomized cobalt, nickel and iron alloy powders (Stellite, Nistelle and Delcrome).
Kennametal has been 3D printing prototypes and cutting tools for some time, but took things a step further in fall of 2019 with the establishment of a Kennametal Additive Manufacturing business unit. The AM division will help customers through the entire process of securing materials, designing parts for 3D printing, and provide series production relying on binder jetting and PBF. An example component described on the unit’s website is a valve cage 3D printed for IMI Critical Engineering, which supplies flow control systems for industrial processes.
Aidro is an Italian company that makes hydraulic valves and systems for a variety of industries. The firm uses metal PBF to 3D print end-use parts that are up to 85 percent lighter than traditionally made counterparts. Other capabilities developed by Aidro include the ability to combine subcomponents into one single printed unit, improve performance over traditionally made parts, and take up less space than conventionally fabricated components.
HP’s partners GKN Additive and Parmatech will likely play increasingly important roles in AM for the industrial sector through the use of HP’s MetalJet 3D printers. Parmatech is a metal injection molding provider, which focuses on the medical and industrial sectors. Though GKN Additive is somewhat focused on aerospace and automotive parts, given the specialties of its parent company, GKN, it manufactures metal powders for AM and provides 3D printing services more broadly, augmented by its more recent acquisition of Forecast3D.
In particular, the company is tackling copper induction coils, which are used in the automotive and industrial sectors for tempering metal components to make them harder. In addition to allowing for the production of complex, custom copper inductor coils, 3D printing is actually a more repeatable and reliable process for fabricating these parts because the heat treatment phase is built into the production step.
GKN is not alone in this space, however. As niche as the application is, PROTIQ, a subsidiary of German industrial manufacturer Phoenix Contact, has an online configurator for customized copper induction coils, which it can 3D print as a part of is its larger 3D printing services. Additionally, the company offers optimized tooling for injection molding. 3D Inductors is another business that is entirely dedicated to 3D printing copper induction coils.
Though it does not offer its services through an online marketplace, NXCMFG is a service provider that focuses specifically on 3D printed tooling. Using design and weight optimization, the company is able to 3D print metal molds and inserts with conformal cooling channels that reduce injection molding cycle times between 20 and 80 percent.
In addition to its metal powder production, Swiss engineering conglomerate Oerlikon’s AM division provides 3D printing services. While it can lean on its expertise across a number of verticals, Oerlikon AM boasts 20 years of experience in toolmaking and general industrial products. Examples on its website range from injection molding tools to a heating sleeve and a heating plate with built-in cooling channels and reduced part count.
DM3D is a manufacturer of directed energy deposition (DED) machines that also provides 3D printing services. Like many DED companies, DM3D markets its technology for both part fabrication and repair. This includes pumps for the agricultural industry, hardfacing cutting implements, and high productivity tooling. DED is capable of 3D printing with multiple metals, with which DM3D uses to produce tooling.
Carpenter Technology Corporation (CarTech) is metals company that has been increasing its stake in 3D printing, first by purchasing titanium powder company Puris, then by acquiring an electron beam melting service provider, CalRAM. Along with Proto Labs and Burloak Technologies, an engineering and manufacturing company, the two service providers have become part of the GE Additive’s Manufacturing Partner Network. All three companies perform AM of industrial goods and have expertise related to all forms of manufacturing. This, along with GE’s close ties to the industrial sector, will likely make the entire network an important component in production of industrial parts.
With headquarters in Austria, voestalpine in an important player in the industrial goods sector, providing AM services as a part of its international steel products manufacturing. In addition to developing metal powders for AM, the company has opened a new AM research institute in Taiwan, a production plant in Canada, and an AM center in Singapore. Aside from making products for just about every sector, voestalpine also manufactures molding and tools, highlighting the ability to 3D print molds with built-in conformal cooling.
Through a majority acquisition in AM service provider Materials Solutions, Siemens is now a 3D printing bureau. With a number of EOS metal PBF systems, the company has an established history in metal 3D printing dating back to 2006. Among the sectors it serves, Materials Solutions highlights the 3D printing of tooling from high-temperature super alloys and featuring conformal cooling.
U.K. engineering company Renishaw has its own line of metal PBF 3D printers, as well as Global Solutions Centres in which customers can begin their journey of AM adoption. As a part of this journey, clients can lease Renishaw machines or have parts printed as a service. Along with its expertise across a number of verticals, Renishaw offers 3D printing for industrial tooling and end parts. As we mentioned in our previous installment, Renishaw 3D printed screw-in milling cutters for KOMET Group in Germany.
SMS Group, which recently partnered with Additive Industries for the development of its serial production 3D printers, developers metal powders for AM and offers 3D printing services. Among the parts it has 3D printed for the industrial space are an SIS injector for electric arc furnaces, a PSM roll cooling ring for metalworking, and a 3D-printed multi-nozzle spray head for die maintenance.
Jabil is another service provider worth mentioning, given its size and the fact that it is an early adopter of HP’s Multi Jet Fusion (MJF) technology for mass production. After using Ultimaker printer farms in-house for printing jigs and fixtures on its assembly line, the contract manufacturer began using MJF, with HP itself as an early customer. The company 3D prints 50 polymer parts for HP’s printers.
In addition to the companies described here, there are a number of large AM service bureaus that you may already be familiar with that are involved in 3D printing tooling for the industrial sector. These include Stratasys Direct Manufacturing, Protolabs, Xometry, Materialise, Digital Metal, FIT AG and 3D Systems.
In the next installment in this series, we will take a look at some of the 3D printer manufacturers already providing systems for manufacturing industrial goods or primed to take advantage of that sector as it evolves.
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