Press-brake Folds with 3D-printed Fold-axis Blocks
折弯机与 3D 打印折轴限位块
标签：折弯机, 3D 打印, 折轴, 限位
大尺度折叠（板长 >300 mm）可改用折弯机：折线以激光划线定位，上下压脚之间垫入 3D 打印的柔性折轴限位块（TPU 或韧性树脂，邵氏 A85），让折叠区局部变形而非整线硬折，折后折痕圆滑、避免贯通的加工硬化带。树脂块按目标折角以 10° 递进做一套五件，配套成形压力约 5–15 t。该工装把雕塑级折叠从纯手工锤击扩展到工作室液压设备，边缘直线度也更容易保证。
Folds longer than 300 mm can move to a press brake: lay out the fold line by laser marking and insert a 3D-printed compliant fold-axis block (TPU or tough resin, Shore A85) between the dies, so the fold zone deforms locally instead of kinking along the whole line—the crease stays smooth with no through-going work-hardened band. Print the blocks in a five-step set advancing 10° per step and form at roughly 5–15 t. The jig brings sculptural folds from pure hand hammering into the studio press, with straighter edges as a bonus.
