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Manufacturing Technology Insights | Sunday, January 22, 2023
There are many ways that metal additive manufacturing and machining are interconnected and how they enhance each other.
FREMONT, CA: Now, additive manufacturing (AM) technology has advanced quickly, and so has machining technology. Each fulfills a different set of needs and a wide range of needs. At some point, however, both large ranges touch and overlap. Various interactions between additive manufacturing and machining are taking place. The notion that they would always compete with one another and that additive manufacturing will supplant machining is no longer valid. They do engage in some competition. The industry is much more interconnected, with the various components supporting one another and working together to increase manufacturing capabilities.
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It is important to evaluate this. Again, additive manufacturing has grown swiftly, and machining has benefited from this development. This applies to situations like the adapter and cutting tools created using 3D printing. How are additive manufacturing and machining interacting today? The following lists some of the responses to that query, representing connections between machining and additive manufacturing that MMS and AM have covered.
Importance of AM: Cutting tools for machining are given new possibilities via additive manufacturing. The two images of cutting tools demonstrate how such possibilities hold for both large and small equipment. AM provides a method for integrating through-tool coolant tubes into a tiny tool's constrained body. In the past, it was impossible to machine precise internal passages into the body using drills with such a small cross-section. With AM, the passages can be grown internally as part of the 3D printing process, eliminating the need for machining and allowing for an efficient coolant flow.
3D printing: Parts that need internal fluid flow are some of the greatest prospects for manufacturing using metal additive manufacturing. Examples of this are the little cutting tools and the adaptor above. Compared to drilling holes from the exterior so that they intersect to form manifold channels, AM allows 3D printing of things with precisely the internal passageways and the materials required to contain those passageways (an optimal shape instead of a block). This might be a big advancement for machining processes, becoming more crucial as additive manufacturing develops. Today, the most popular machining operation is drilling. That may still be true as additive manufacturing for production becomes more common. However, holes that must be precisely straight and symmetrical will be the focus of drilling and other machine tool hole-making operations. More frequently, 3D printing will be used to create holes that must be tunnels, maybe with curved paths and without concern for the exact geometry of the route.
Efficiency: Numerous small odd-shaped parts produced simultaneously in a single build using metal additive manufacturing, including binder jetting and powder bed fusion, is another useful production application. The oddness is typically a requirement because every square or simple part would be easier to machine than print. However, if these organically shaped or complex parts are small enough, it would be simple to 3D print dozens or even hundreds of them at once in a single build. The problem is to machine these components; therefore, designing work holding to enable effective setup in machining is critical to success.
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