Study On Mathematical Model Of Error For Heat-dissipater Of P463LZ-1 Led Lamp In Stamping And Its Technology Of Progressive Die With Four Processes

In the background of the rising energy-saving consciousness of the world’s people and the relatively high price in recent years, the field of construction and business applications et al. continued to import LED lamp lighting, the LED lamp lighting industry had obtained the fast development. Heat-dissipater as the key component to solve the heat dissipation problem of the LED lamp, it determined the service life of LED lamp lights, it was very important for its related design and manufacturing. At the same time, precision improvement in sheet metal stamping had been the concern that the stamping researchers have engaged in. The research of generalized holo-factors mathematical model of dimension-error and shape-error for sheet metal in stamping was very little, but the research can realize the active control of stamping error of various part, to guide the practical production, to improve product precision and production efficiency for company, etc., the research is of great significance.This research was based on heat-dissipater of P463LZ-1 LED lamp, the traditional forming process of the product used the method of progressive die stamping, its traditional stamping processes were drawing, drawing, redrawing, redrawing,punching, reducing, reducing, and so on. At first, establish the general physical model before stamping the sheet metal, in order to express the shape parameter of sheet metal. Based on the analytic hierarchy process, organize and divide the factors influencing the size and shape precision of stamping sheet metal, analysis the influencing relationship between the size and shape precision in sheet metal stamping and influencing factors, based on the error back propagation algorithm, to study on the generalized holo-factors mathematical model of dimension-error and shape-error for sheet metal in stamping, use simulation and experiment to prove the practicality and generality of the established generalized holo-factors mathematical model of dimension-error and shape-error for sheet metal in stamping. Secondly, based on the theoretical analysis and practical experience, study on the new four stamping processes for heat-dissipater of P463LZ-1 LED lamp, use simulation to prove the feasibility of the new four stamping processes. Thirdly, based on the generalized holo-factors mathematical model of dimension-error and shape-error for sheet metal in stamping and the new four stamping processes, to design the mathematical model of dimension-error and shape-error for heat-dissipater of P463LZ-1 LED lamp in stamping, use simulation to prove the practicality of the mathematical model of dimension-error and shape-error for heat-dissipater of P463LZ-1 LED lamp instamping. At last, based on the analysis of design difficulties of the progressive die with four processes and the corresponding solution, to design the progressive die with four processes for heat-dissipater of P463LZ-1 LED lamp and analysis the economical efficiency of the progressive die with four processes. Based on the above research, to improve the precision and benefit of the heat-dissipater of P463LZ-1 LED lamp for company. The main content of this paper was as follow.(1) Establishment and verification of the generalized holo-factors mathematical model of dimension-error and shape-error for sheet metal in stamping.(2) Design of the new four stamping processes for heat-dissipater of P463LZ-1LED lamp.(3) Based on the generalized holo-factors mathematical model of dimension-error and shape-error for sheet metal in stamping and the new four stamping processes, the establishment and verification of mathematical model of dimension-error and shape-error for heat-dissipater of P463LZ-1 LED lamp.(4) Based on the new four stamping processes, the design of the progressive die with four processes for heat-dissipater of P463LZ-1 LED lamp.