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Views: 0 Author: MBH Publish Time: 2026-05-22 Origin: Marbach Official
The "Memory" of the Material: Why POM Moves
POM (Acetal) has a strong "memory." Most rods and sheets on the market are extruded quickly and cooled fast, locking in massive internal stress. When you start machining, you're basically releasing a spring. The more you cut, the more it moves.
The Marbach Protocol: 3 Steps to ±0.05mm Precision
We don't just pull a rod off the shelf and throw it on the CNC.
1. Professional Pre-Annealing
Before the material even touches the CNC machine, we perform a comprehensive annealing cycle in a specialized oven. This critical step relaxes the molecular structure, neutralizing internal stress at the source.
2. The Roughing Gap For ultra-precise parts, we always perform a rough cut first and let the material "settle" before the final finishing pass.
3. Sharp Tooling, No Heat: POM hates heat. We use high-rake, razor-sharp tools to ensure we are cutting the plastic, not rubbing it.
The Result?
Parts that stay flat. Dimensions that stay within ±0.05mm weeks after they leave our facility.
If you've had enough of "banana-shaped" parts from other suppliers, let's talk. We don't just sell plastic; we sell stability.
