The integration of metal 3D printing and subtractive manufacturing technology in the automotive industry

Mar 10, 2025

Modern force in the automobile sector: metal 3D printing technology
With its original additive manufacturing technique, metal 3D printing technology has transformed the automotive sector. By stacking metal powders or wires one on top of the other, this method can precisely make complex structural parts without using traditional molds or fittings. This cuts down on the time it takes to make things and the amount of waste that happens. Automotive manufacturers extensively apply metal 3D printing technology to produce lightweight and high-strength parts such as engine and chassis components. Along with enhancing automotive performance and fuel economy, these parts lower emissions, therefore helping to protect the environment.
For instance, 3D-printed brake calipers-made with Ti-6Al-4V powder and with outstanding structural strength and performance-have been successfully introduced thanks to cooperation between Bolite Company and Xiaopeng Motors. Simultaneously, they have attained lightweighting, therefore contributing significantly to the range and performance enhancement of electric cars. Not only does 3D printing technology shorten the research and development cycle and hasten the speed of product launch, but well-known brands like Audi and Ferrari have also embraced it on car seats, steering wheels, and other components, improving the complexity and aesthetics of products.

Subtractive manufacturing technology: improvement of conventional methods
As a conventional manufacturing technique, subtractive manufacturing technologies-including CNC machining-still have enormous significance in the automotive sector. CNC machining can provide very high levels of surface smoothness and dimensional accuracy by precisely controlling the movement of machine tools and the cutting of cutting tools. This allows for precise machining of metal materials. This technology plays an indispensable role in the automotive sector, manufacturing high-precision components such as engine parts and body structural parts..
But as the automobile sector keeps developing, consumers' need for unique and tailored car products is rising daily. When addressing complicated structures or customized designs, traditional subtractive manufacturing methods may suffer with long production cycles and high prices. Subtractive manufacturing techniques thus also depend on constant innovation and upgrading to change with the needs of the market.
Combining subtractive manufacturing technologies with metal 3D printing yields complimentary benefits that will help to shape the future.
Subtractive manufacturing technology and metal 3D printing were born to address this issue together. One can obtain a perfect mix of one-time molding of complicated structures and high-precision processing by naturally merging these two technologies. 3D printing technology can be utilized to produce prototypes or crucial components with intricate structures in the process of manufacturing automobiles, and then CNC machining can be used for fine finishing and surface treatment, considerably boosting processing efficiency and product quality.
While CNC machining guarantees the dimensional accuracy and surface smoothness of the product, improving the general quality of the product, 3D printing technology can rapidly manufacture prototypes of complex structures, shortening the research and development cycle. Furthermore, as 3D printing technology can cut raw material waste and CNC machining can maximize processing flow and lower needless procedures, this fusion technology can also help to lower manufacturing costs.
For instance, 3D printing combined with CNC technology is becoming a trend in the manufacturing of aluminum alloy prototype parts. The quality and performance of prototype samples can be raised by manufacturing complicated structure prototypes using 3D printing technology and then employing CNC technology for precise finishing and surface treatment. Not only are aluminum alloy materials suited for this fusion technology, but other metal materials, including titanium alloys, stainless steel, etc.
Applied successfully in the automobile sector: a practical case
In the automobile sector, the combination of metal 3D printing with subtractive manufacturing technologies has produced notable outcomes in pragmatic uses. For instance, a certain automotive company employed CNC machining for fine-tuning and 3D printing technology to rapidly create a prototype of the body structure while designing a new model. This approach not only cuts the cycle of research and development but also raises the general caliber of the good. Furthermore, the manufacturer has made good use of fusion technology to create lightweight, high-strength aluminum alloy parts, thereby enhancing the fuel economy and performance of cars.
Another example is the completely electric 3D-printed delivery truck Helixx unveiled. This delivery vehicle simplifies assembly by manufacturing five key components without welding using 3D printing technology, therefore lowering production costs. Simultaneously, the body's design pays excellent attention to aesthetic aspects, so this delivery truck is both useful and attractive. Using this fusion technology not only increases manufacturing efficiency but also opens more 3D printing technology application possibilities in the construction of commercial vehicles.

https://www.china-3dprinting.com/metal-3d-printing/additive-manufacturing-of-auto-brackets.html

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