Tong, Kun, Castillo, Enrique Del, Cavalier, Tom M., Lehtihet, E. Amine, and Joshi, Sanjay
International Journal of Production Research. Apr2009, Vol. 47 Issue 7, p1895-1912. 18p. 7 Diagrams.
INDUSTRIAL efficiency, RAPID prototyping, LINEAR programming, OPERATIONS research, COMPUTER software, and SOFTWARE architecture
A methodology for the design of artifacts used in software error compensation of rapid prototyping (RP) machines is presented. In software error compensation, an artifact is frequently utilized for measuring parametric errors of the machine axes. In the past, different artifacts have been used and designed in an ad hoc way. To date, no method is available to evaluate the design of an artifact based on its effect on the precision of the fitted models estimated using the artifact. This paper proposes a method to evaluate and improve the design of an artifact using design of experiments (DOE) techniques and numerical optimization. As demonstrated by the results, a D-optimality criterion optimized using simulated annealing techniques can be used to evaluate and improve the design of an artifact so that the components of the volumetric error are predicted more precisely, with the benefit of better error compensation over repeated use of the error models. Although in this paper the concept is only demonstrated for the SLA 250 RP machine, it can be applied to the design of any artifact used for machine error compensation. [ABSTRACT FROM AUTHOR]
Modern Machine Shop. May2007, Vol. 79 Issue 12, p110-114. 5p. 2 Color Photographs.
MACHINE shops, MACHINING, INDUSTRIAL efficiency, and COMPUTER software
The article focuses on Innovative Precision LLC in Ogden, Utah, and on how FeatureCAM technology helped increased the company's productivity. Innovative Precision specializes in tool making, prototyping and production machining for medical, aerospace, military and automotive customers, providing short-run, high-precision machining services. To provide services in a timely and accurate manner, the company uses FeatureMill 2.5D, FeatureMill 3D and FeatureTurn from Delcam USA.
COMPUTER software, COMPUTER-aided design, MANUFACTURING process automation, AUTOMOBILE industry, PROTOTYPES, INDUSTRIAL productivity, and INDUSTRIAL efficiency
The article reports that MAHLE Group has successfully implemented Cimatron's integrated computer-aided design (CAD)/computer-aided manufacturing (CAM) solutions to speed up its prototype production operations. According to Ulrich Boch, manager of the prototype and utilities shop at MAHLE Group, prototyping is an important and challenging part in the process of automotive part manufacturing. The ideal CAD/CAM solution for MAHLE is a system that would not only reduce the time of individual tasks but also streamline the whole process from design to production. Functionality and ease-of-use are some of the factors considered in the selection of Cimatron as the system of choice at MAHLE.