When does TOOL SHARPENING fit for special tools?

In our projects, it becomes clear at ACG Schleiferei GmbH that the right decision is not based on the price tag alone but on the entire processing chain. What many underestimate at first is the effort created by tool changes, tolerance requirements and subsequent finishing.

For whom does sharpening for special tools fit?

The solution fits contract manufacturers and production companies when a milling part has special geometries or contours and would require several tools. Also with parts with a narrow process window it is often sensible, because precision, surface and processing time can be considered together. At ACG Schleiferei GmbH in Urnäsch we examine exactly this combination of part, process and target image.

For whom does it explicitly not fit?

It does not fit if the price at procurement is the only criterion and lead-time disadvantages are knowingly accepted. Then standard tools are usually the cheaper alternative. The most common misconception: cheaper in purchasing does not automatically mean cheaper in use.

Recently a job was rejected because the tools had a diameter below 0.5 mm and tolerances in the range of a few thousandths of a millimeter.

According to which criteria do we check suitability?

The actual check at ACG Schleiferei depends on several factors: current process, material of the component, target image, lead time and coating. Practical points such as batch size, number of teeth and number of steps, e.g., roughing and finishing, also come into play. This sequence is important because a tool may be technically feasible but economically imprudent.

1. First we clarify the current process and the material of the component.
2. Then we check the goal, precision, surface and processing time.
3. Next we look at lead time and coating.
4. Finally we assess batch size, number of teeth and number of steps.

What measurable thresholds help with the decision?

The thresholds help in pre-checks, but do not replace professional assessment. Contrary to the assumption that small series are automatically unattractive, the solution can pay off precisely when several steps are bundled. With five tools the setup time is noticeably spread, and that is where the accounting often tips.

What alternatives exist?

The obvious alternative is standard tools. They are usually cheaper to buy, but often come with disadvantages in lead time. Depending on the part, a combination can also make sense, i.e., standard tools for simple steps and an individual solution only where geometry or tolerance requires it.

When do we say no at ACG Schleiferei?

We decline a job if it is technically feasible but does not bring meaningful benefit for both sides. The last time this happened was with very small tools with diameters below 0.5 mm and tolerances below a few thousandths of a millimeter. In practice, that is better than a compromise that neither runs cleanly nor convinces economically.

Frequently asked questions

For contract manufacturers, the most sensible question is not whether special tools according to drawings are generally possible, but whether they really simplify the process. That is where the difference between a feasibility idea and a clean solution lies. Those who check geometry, material, lead time and coating together usually make the better decision.

If you already know the drawing, the material and the desired processing, we can assess suitability with you directly. ACG Schleiferei GmbH in Urnäsch works personally, quickly and straightforwardly, with pick-up and drop-off service in Eastern Switzerland and throughout Switzerland.