摘要
粉末鍛造製程是近淨形製程之一種，其為結合粉末冶金製程與鍛造製程之一種整合製程，其製程具有材料使用率高，成品精度佳，後續機械加工量少，加工道次少，節省能源，成形負荷小，模具壽命長，易於自動化生產之優點，比傳統機械加工製程與鍛造製程可節省15~50%之成本，故極具有產業應用上之價值。本研究之目的為以冷氣壓縮機用之滑塊為載具，開發其粉末鍛造製程，期望能得到完全緻密化之胚料，並建立其製程參數與相關模具設計技術。結果顯示，在壓著成形壓力為74Kg/平方公厘與燒結溫度為1150℃/3小時為最佳之燒結胚料製程參數，在後續鍛造製程中，以胚料溫度1000℃與鍛造模具溫度200℃下進行實際燒結胚鍛造成形，可得到預期之完全緻密之胚料，顯示本研究之製程規劃與模具設計為可行。
並列摘要
Powder forging process is one of the near net shape processes, which is the hybrid process of sintering and forging. The advantages of this process are high yield ratio, precision in dimension, little machining amount, less stages, saving energy, low forging load, longer die life and easy to automation. So, this process is with the value in the industry. In this study, the powder forging process of HF4 alloy steel powders is developed by using the slide block of air compressor in the car as the vehicle. The fully dense and near net shape billets are expected to obtained and the process variables and the principles of die design are expected to establish as well. The results show that the optimum process variables during sintering are 74Kg/mm^2 for compacting and 1150℃ 3hr. for sintering. Then, the sintered billets heated to 1000℃ Care forged with the forging die heated to 200℃. Finally, the fully dense forging billets are obtained.
被引用紀錄
延伸閱讀
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