Alpha Precision Group (APG) has achieved significant weight reduction in workholding fixtures by using 3D printing technology. APG has successfully reduced the weight of chuck jaws applied in turning operations by an impressive 77%. The shift from traditionally machined jaws to 3D printed ones not only made the system lighter but also optimized clamping pressure, addressing part deformation issues during machining.
APG started to adopt metal 3D printing in 2018, primarily for part iteration and for creating durable fixtures for CNC machining. The company’s exploration led to the development of chuck jaw assemblies used for turning cam gears. This solution, now patented, is available for external customers. By using bound metal deposition (BMD) technology, APG engineered lattice structures and fine-tuned geometries, achieving considerable weight reduction without compromising functionality.
APG Reduces Chuck Jaw Weight with 3D Printing
The fixture installed on the lathe. (Image Credit: APG)
The 3D printed components of the chuck. (Image Credit: APG)
Further improvements were brought about by the addition of a Moldjet 3D printer from Tritone Technologies. This unique methodology allowed APG to create chuck jaws of increased complexity and effectiveness. The jaws produced by Moldjet weighed a mere 492 grams, representing an impressive 77% weight decrease compared to their machined equivalents. This not just saved materials but also boosted productivity by allowing for quicker spindle speeds during machining tasks.
This has an effect beyond just decreasing weight; the redesigned chuck jaws allow for sustained higher spindle speeds without sacrificing clamping force, offering improved efficiency for machining procedures. The successful tale of APG illustrates the potential of 3D printing to revolutionize industrial processes, laying the groundwork for increased performance and productivity in the manufacturing sector.
Source: mmsonline.com
