Browsing by Subject "Laser Aided Manufacturing Process"
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Item Automation of a Hybrid Manufacturing System Through Tight Integration of Software and Sensor Feedback(2006-09-14) Stroble, J. K.; Landers, R. G.; Liou, F. W.This paper presents a framework for the automation of the Laser Aided Manufacturing Process (LAMP) lab at the University of Missouri-Rolla. The groundwork for the proposed system involves the integration of the LabVIEW software package and a PXI-8195 real time controller with several sensors and actuators. The incorporation of all key control parameters into one virtual instrument will help achieve the goal of an automated hybrid system. To achieve this goal, a five-phase plan, which will be further discussed in the paper, has been developed. The first phase of this plan, which includes the deposition of a thin walled structure without DNC communication between LabVIEW and the CNC has been achieved, and will be the focus of this paperItem Determination of Transformation Matrix in a Hybrid Multi-Axis Laser-Aided Manufacturing System and its Practical Implementation(2006) Vijayan, Ajay Panackal Padathu; Sparks, Todd; Ruan, Jianzhong; Liou, FrankItem Effect of Structured Laser Pulses on Grain Growth in H13 Tool Steel(2006) Sparks, Todd; Ruan, Jianzhong; Fan, Zhiqiang; Bao, Yaxin; Liou, FrankItem Thermocouple Embedding for the Production of a Substrate for Rapid Manufacturing(2007-08-28) Gunaratnam, Rana; Sparks, Todd E.; Liou, FrankItem Uncertainty Analysis in Laser Deposition Finish Machining Operations(University of Texas at Austin, 2010) Francis, Jomy; Sparks, Todd E.; Liou, FrankThe Laser Aided Manufacturing Process (LAMP) from Missouri S&T is a laser based metals rapid manufacturing process that uses machining to improve the final part's surface finish. When free-form machining, the absence of enough deposited material results in inconsistent scallop heights which result in poor surface finish or incorrect geometry in the final part. This paper investigates a probabilistic approach to various uncertainties involved in the deposition and subsequent machining of an arbitrary part. Furthermore, this paper analyses the machine errors which makes the response of Scallop Height to exceed the predefined maximum scallop height when traveling along the tool path interval distance. Tackling these problems allows us to achieve the final part shape with higher accuracy.Item Workpiece Alignment for Hybrid Laser Aided Part Repair Process(2005) Padathu, Ajay Panackal; Sparks, Todd; Liou, FrankWork piece alignment is a key issue for hybrid laser aided part repair, a process utilizing both machining and laser deposition. Proper alignment can greatly improve the accuracy of the repair process. This paper introduces a method for aligning a physical work piece and a CAD model using a Renishaw touch probe and software tools. Also discussed is a model for computing 5-axis CNC positions based on a desired work piece orientation.