Velo3D Develops Supplier Network to Scale Production of Sapphire XC Machine (Includes Video)
The company’s larger size machine is also the machine seeing larger demand. Successful integration of subassembly suppliers with the company’s own production in California began this year.
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Laser powder bed fusion is now being applied into enough production applications that the challenge facing AM equipment producers is to make enough machines. Velo3D representatives stressed this demand when I recently visited the company’s headquarters and manufacturing operation in Fremont, California. “Our challenge now is to scale up production” is a point I heard in various forms from various people during my visit. At this site, the array of machines in various stages of assembly on the production floor gives a feel that is very much like the assembly floor of a company building other mass-produced production equipment such as CNC machine tools.
Sapphire XC machines in assembly at Velo3D’s headquarters and production facility in Fremont, California.
Brad Kreger, executive VP of operations, oversees this machine production. He describes one significant advance the company has made in response to the need to scale. To expand capacity, the company has developed a supplier network and has now begun outsourcing critical subassemblies, such as the upper transfer assembly seen in the video above. “In the first quarter of this year, we did our first uncrating of a subassembly delivered from a supplier and incorporated into a production machine,” he says.
The company’s bigger machine model is also its bigger seller. Its larger capacity Sapphire XC laser powder bed fusion machine — that is, larger than the original Sapphire machine — offers a build surface 600 mm in diameter (big enough for a superhero’s shield) and a build height of 550 or 1,000 mm. Spacecraft engine components represent one production application of the machine. At present, the company is able to build up to 10 of these machines per quarter alongside building the smaller machines. Total lead time for an XC machine to complete its production process is around 50 days, but only 20 days is the machine assembly. The rest is dialing in machine parameters to sufficient precision to ensure interchangeable performance from machine to machine, he says.
Brad Kreger (right) says outsourcing subassemblies like the upper transfer assembly seen here has entailed documenting and systemizing the company’s assembly procedures.
The interchangeability is partly what has enabled the demand for the larger machine, the company says. Software and sensing within the printer combined with tuning of the machines for production means that a build program can run equally well, without modification, on either the Sapphire machine or the Sapphire XC. Production proven out on the smaller, less expensive machine can therefore be directly transferred to the XC as the user shifts to this machine for greater capacity.
A similar, parallel shift is happening in Velo3D’s machine production. Indeed, in a way, the company is also encountering a similar need for interchangeable process control. When machines were built entirely in-house, “We used to manufacture to drawings,” Kreger says. Among a team within a single facility, there was a shared understanding of what the assembly drawing requirements meant and how to work to them. “But what is intuitive to one group is not intuitive to someone else,” he says. Outsourcing of subassemblies therefore meant developing clear instructions derived from the assembly drawings. Success at the outsourcing to a large extent came from this effort — meaning that, in this context too, repeatable production required a system that could operate the same way in two different places.
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