Beyond the Laser: How In-House Die Engineering and 700-Ton Capacity Give Lasertech a Stamping Edge
04/28/2025
Most buyers know Laser Technologies for high precision laser cut laminations, but more than two decades of experience in metal stamping is what enables us to scale programs from prototype to millions of parts without switching suppliers. With presses ranging from 60 tons to 700 tons and a fully captive tool room, we design, build, and maintain every progressive or compound die under one roof, keeping cost, lead time, and quality firmly in our control.
Why and When to Switch from the Laser to a Press
Laser cutting excels at quick turns, small batches, and geometries that change every revision. Once annual volumes climb past a few hundred cores, or when material geometry pushes cycle times higher, stamping becomes a more viable economic winner: Many variables come into play but below is a general rule of thumb.
| Threshold | Laser-Cut Laminations | Stamped Laminations |
|---|---|---|
| < 30,000 pcs/yr | Fastest Delivery, no tooling | Tooling ROI unlikely |
| 30,000-100,000 pcs/yr | Viable option depending on Size, Geometry, and Material | Compound die often pays back in < 12 months |
| > 100,000 pcs/yr | Cutting time dominates cost | Compound Die - Viable Progressive Die - Minimizes cost per part |
Because Laser Technologies operates both processes in-house, customers receive an unbiased cost model that helps make the decision when to pivot from laser cutting to hard tooling.
Solid Model to Production Die All Under One Roof
- Die Design: Our Engineering team designs progressive or compound tools, applying our in-house lamination expertise to minimize burr height and optimize punch life.
- CNC Machining: Five vertical machining centers square, drill, tap, and pocket every die block. Precision up-front machining means plates bolt together without adjustments later.
- Wire EDM: High precision WEDM cuts punches, die plates, and stripper plates to 0.0001 in. The ability to control die clearances and tight corner radii is what minimizes electrical-steel laminations' burr even at thin gauges.
- Press Qualification: Tools run in, 60-ton, 200-ton, or the flagship 700-ton press lines, Full FAI’s conducted before production ever starts.
Compound vs. Progressive: Choosing the Right Tool for the Job
| Criterion | Compound Die | Progressive Die |
|---|---|---|
| General | One Station, Excellent Concentricity | Multiple Stations, Sharp Corners |
| Tool Cost | 40-60% less | Higher upfront but lowest $/part at volume |
| Rotor / Stator Mix | Stamp Rotor and Stator independently (ideal for MRO) | 1:1 Rotor and Stator output |
| Downtime Impact | One die down ≠ entire family down | Fail one station, whole die is out |
Laser Technologies guides customers through trade-offs, often recommending a compound die up to ~20 in. Ø when corner radii can be 0.007 in. or larger, and a progressive layout for ultra-high volumes or zero-radius corners.
The Tolerance Triangle: Clearance, Burr, and Tool Life
Stamping electrical steel isn’t just “hit it faster.” Too much clearance raises burr height; too little snaps punches. Our die expertise takes into consideration material type, material thickness, Coating, Burr Requirements, and Program expectations.
Why an Integrated Die Shop Matters to You
- Faster Launch: Design, build, and run first article without shipping tooling across time zones.
- Lower Lifecycle Cost: In-house maintenance extends die life and slashes downtime.
- Product Life Integration: One point of contact for laser prototypes, stamping launch, and stacked-core assembly.
Ready to map out the crossover point where stamping trumps laser and pick the right die to match your volume? Send us a print and we’ll build a data-backed cost model that puts hard numbers behind the tooling decision.
