Tuning a Pneumatic Planishing Hammer for Batch Work
气动打平锤的量产参数与调校
标签：气动锤, 量产, 重叠率, 调校
气动打平锤适合批量坯料收整：空气压力 0.4–0.5 MPa、锤击频率 1 500–2 200 次/min，配 φ25 mm 中凸锤面，移动速度保持 15–20 mm/s 才能得到 60–70% 的锤痕重叠。调校诀窍是先在废料上试打，锤痕深以 0.1–0.15 mm 为限，过深会造成局部减薄；工件每打 3 遍翻面一次并检查翘曲，配合 650 ℃ 中间退火，φ300 mm 盘坯的整平时间可从手工 2 h 压缩到 20 min。
A pneumatic planishing hammer suits batch truing: 0.4–0.5 MPa air, 1 500–2 200 blows/min, a φ25 mm medium-convex face, and travel of 15–20 mm/s to hold 60–70% mark overlap. Set it up on scrap first, keeping mark depth to 0.1–0.15 mm—deeper thins the sheet locally. Flip the work every three passes and check for warp; with 650 °C intermediate anneals, truing a φ300 mm disc drops from 2 h by hand to about 20 min.