多軸複動化閉塞鍛造模組開發與應用

Development and Application of Multi-Axis Closed-Die Forging Technologies

楊俊彬 ； 張燦勳

《機械工業雜誌》 429期 (2018/12) Pp. 14-21

摘要

隨著產業之競爭，鍛造技術發展趨勢為下料省料化，尺寸精密化與生產高速化，其目的為降低生產成本，提升產品競爭力，其中以下料省料化為降低成本最直接之方法。而要達到下料省料化，即需導入多軸複動化閉塞鍛造模組技術，使鍛件無毛邊化。本研究以五塊楔塊組設計可達到Z軸雙向複動化之效果，比其國外之雙油壓模墊系統具有合模高度低，所需能力發生點低之優點，可配合一般規格鍛機使用，不需使用特殊規格與高能力發生點之鍛機；其模組化設計方式配合快速換模系統，換模容易，提升設備稼動率。本研究以轉向用十字軸鍛件為載具進行冷間鍛造製程之驗證，其從實驗結果顯示所開發之鍛件尺寸符合要求，鍛件無毛邊且其鍛流線分佈均勻且為連續，顯示本研究所開發之Z軸雙向複動化閉塞鍛造模組為可行，此外，應用本技術已開發出各式無毛邊鍛件，比其原先之傳統鍛造製程可節省15～40 %的材料。

關鍵字

多軸複動 ； 閉塞鍛造 ； 十字軸

並列摘要

Currently, there is a trend in forging technology toward lower material loss, higher precision and greater efficiency in order to reduce cost and improve competition capability. Closed-die forging can prevent or minimize material loss and avoid the occurrence of burrs. This paper introduces a development for multi-axis closed-die forging Technologies. Five wedges are used to achieve the effect of double action forging. The result from this research shows the developed die set with one hydraulic cushion is superior to the die set with two hydraulic cushions. The proposed design could facilitate die change by using QDC system and improve the utility ratio of the forging press. Cross shaft is employed for the validation of the cold forging process. Experiments show that the forged product using the developed method has less flash and more uniform refinement. Comparing with the original forging process, the proposed method can save up to 15~40% on material with minimized flash.

並列關鍵字

Multi-ram and multi-action ； Closed forging ； Cross shaft