At SQM, sheet-metal piercing is executed on CNC-controlled turret punch presses and high-speed mechanical/hydraulic presses rated up to 400 kN, giving us the force and flexibility to handle carbon steels, stainless steels, aluminium, and exotic alloys from 0.5 mm to 16 mm thick. Our extensive tool library-round, slotted, oblong, louvers, countersinks, and forming punches, lets us generate hole diameters and cut-outs from Ø1 mm to Ø100 mm (or custom geometries) in a single hit while maintaining positional tolerances of ±0.05 mm and edge‐to-edge repeatability within ±0.03 mm across the nest.
Every program is generated directly from your CAD data, with tool paths optimized for minimal tool wear and integrated slug-vacuum extraction to eliminate secondary deburring. Where cosmetic requirements are critical, we apply fine-grind or nitrogen-blanketing technologies to control burr height below 20 µm. For larger runs, we can migrate the same part to progressive-die piercing/stamping, boosting throughput to 240 hits min⁻¹ without sacrificing accuracy.
Inline optical vision systems and post-process CMM verification certify each batch to customer-specified tolerances, and all process parameters are logged under our ISO 9001 and IATF 16949 quality management systems. The result: perfectly aligned, stress-free holes that drop straight into your downstream bending, welding, or assembly operations.
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