Pushing big batches means the floor has to keep humming without babysitting every cut. I was on a laptop shell run where the bits kept nicking the corners, and half the crew’s time went to patching parts. The metal had to stay light for travel weight, strength had to hold, and the deadline wasn’t moving.
Corner Wear in High-Count Jobs
The killer was edging too quickly. Plain cutters lost bite after fifty pieces on 7075, so we were swapping or grinding every hour. Corners rounded, walls thinned unevenly, and drop tests started failing. Vendors wanted big money for better steel, but weeks out.
Same old story: I need ten thousand yesterday, tools quit early, and sizes wander.
How Aluminum CNC Held the Line
We tuned the aluminum game, and it paid off fast. Grabbed polished carbide with a thin coat, cranked the spindle a hair, and ran mist to blow chips clear. Each shell took 25% less time, and one bit lasted clean to 2,000.
What kept it rolling:
- Bits Stayed Sharp: Coated carbide cut 7075 smooth, no shake.
- Stock Fed Easy: Annealed rods slid in, less buzz.
- Grip Stayed True: Vacuum chuck held flat, 0.015mm all day.
Rejects dipped under half a percent, frames cleared certs first pass. Lower weight cut freight, too.
Why It Fits Big Runs
Drone arms, med boxes—aluminum CNC jumps scale without extra benches. Pockets, ribs, done in one clamp. I’ve seen lines knock 20% off piece price by running mostly 6061, saving 7075 for hot spots.
Buyers juggling count and spec, the win is parts that stack the same every pallet—ready for finish or snap-together. If you’re loading volume, these tweaks keep the wheels turning. Details at www.simituo.com.