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Forging Process of Graphite Lubricated LED Lamp Heat Sink
Дата публикации: 13-07-2026 22:00:00
Publication date: 14 July 2026
Source: Defect and Diffusion Forum Vol. 453
Author(s): Tung Sheng Yang, Meng Wei Ke
The stress-strain curves for AL-1050 were experimentally determined through compression tests. The friction factor between the AL-1050 aluminum alloy and the die material was subsequently obtained via ring compression tests, with graphite serving as the lubricant during the LED lamp heat sink forging process. The design of the forging dies for the LED lamp heat sink carefully considered several critical factors, including product geometry, parting line, die fillet radius, shrinkage, and flash. Subsequently, die dimensions, the stress-strain curve, the friction factor, and initial billet dimensions were utilized as input parameters for the finite element analysis (FEA) of the LED lamp heat sink's forging. The FEA successfully predicted the maximum forging load, effective stress distribution, and die-filling behavior of the LED heat sink during the forging process. Following the parameters established by the simulation, an LED lamp heat sink was fabricated using a forging machine. The experimental results showed excellent agreement with the simulation predictions, thereby validating the accuracy of the FEA model in forecasting the forging process.
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The stress-strain curves for AL-1050 were experimentally determined through compression tests. The friction factor between the AL-1050 aluminum alloy and the die material was subsequently obtained via ring compression tests, with graphite serving as the lubricant during the LED lamp heat sink forging process. The design of the forging dies for the LED lamp heat sink carefully considered several critical factors, including product geometry, parting line, die fillet radius, shrinkage, and flash. Subsequently, die dimensions, the stress-strain curve, the friction factor, and initial billet dimensions were utilized as input parameters for the finite element analysis (FEA) of the LED lamp heat sink's forging. The FEA successfully predicted the maximum forging load, effective stress distribution, and die-filling behavior of the LED heat sink during the forging process. Following the parameters established by the simulation, an LED lamp heat sink was fabricated using a forging machine. The experimental results showed excellent agreement with the simulation predictions, thereby validating the accuracy of the FEA model in forecasting the forging process.
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