Hydraulic Press Dapping for Batch Work
液压压窝机批量成形
标签：液压机, 批量压窝, 逐级成形, 工业五金
用 20–50 t 液压机配标准凹模组可替代手工批量压窝：上下窝模对位，聚氨酯垫作传力介质，压力 5–15 MPa 缓慢加压，单件行程 10–20 s。相比锤击，液压成形壁厚更均匀、回弹小，适合 1–2 mm 铜板半球件。分 2–3 级换模逐级加深，每级压深不超过窝径的 1/3，级间 650 ℃ 退火防加工硬化开裂。
A 20–50 t hydraulic press with standard dapping dies replaces hand work for batches: align the male/female dies, use a polyurethane pad as force medium, press slowly at 5–15 MPa with 10–20 s per stroke. Compared with hammering, walls are more even and springback smaller—good for 1–2 mm hemispheres in copper. Step through 2–3 die sizes, deepening no more than 1/3 of the cup diameter per pass, annealing at 650 °C between passes to prevent cracking. ---