Japanese saw-blade maker · global top-5 TCT/diamond blades

A saw blade must cut steel, wood and resin at high speed, precisely, for decades on end. This Japanese maker — one of the world's top five for TCT and diamond blades, supplying globally since 1970 — holds an almost obsessive devotion to precision, because the life of every tooth begins with the very first cut of the blade blank.

The solution

The MLC sheet laser performs high-precision blanking of blade blanks, using ±0.03 mm repeatability and micro-joint technology so that a whole sheet of small parts never shifts or drops during cutting — keeping the entire batch consistent.

Results

• Stable blank roundness and tooth-base location eases downstream grinding
• Micro-joints let densely nested small parts be handled safely, raising nesting density
• Narrow kerf and low heat protect the blank's microstructure and hardness uniformity

For a Japanese craftsman, tolerance is not a number — it is dignity. When every blank lands at the same position with the same roundness, that quiet consistency is exactly why they trust Midnight with the critical step.

Why HAZ and micro-joints matter

Blade blanks are usually made using high speed tool steel; too much heat input alters the microstructure near the cut and leaves residual stress, affecting quench hardness. The fiber laser's narrow kerf and low heat input keep the HAZ minimal; micro-joints hold parts with tiny uncut points so small pieces don't tip over or fall into scrap — precision and safety together. This is why precision-tool makers choose laser over stamping or sawing.