precision-engineering

The Technical Solutions are in our DNA and customer benefits are our goal

As manufacturers of machining centres for the production of small dimensioned parts, Bumotec has demonstrated over the years its ability to meet the highest demands of precision and quality and so to generate significant benefits to its customers.

Bumotec has developed in its machining centres, a multi-tasking integrated approach which allows the combination of a wide range of operations in a single machining cycle. The main objective is to shorten cycle times and thus increase customers productivity for the production of parts requiring very high accuracy, 6 sided machining, with a single optimised setup. This will also improve production safety.

Customers often submit projects with the most difficult results to achieve. But beyond the ability to design machines with undeniable qualities, bearing the “Swiss made” quality label, we have developed a particular expertise in our field. In addition to our traditional ranges of turning and milling operations, Bumotec offers a range of additional expertise such as generating tool paths straight or helical, grinding, turning on hard materials (ferrous or non-ferrous), and also chamfering or “guillochage” so often used in the world of watchmaking, and machining of hard or soft ceramic, to name a few.

We detailed two concrete examples of developments that have brought great benefits. Our customers have trusted our engineers and our specialists to develop “The Optimum Solution” to match their expectations.

People and Expertise

In the micromechanics field, especially aerospace, Bumotec has achieved technical parts with high geometrical precision. One of them designated as “a pinion regulator” for the fuel control equipment of aircraft engines is the most specific example. Produced from bar stock material, allowing the client to abandon the production of molded preforms, which is expensive and slows down the manufacturing process, our S191 machining centre has achieved the production of this part in a single cycle, machined on all sides, including turning operations, 5-axis milling, automatic finishing with dynamic correction using a contactless Renishaw probe. We are also capable of gear hobbing for the production of an outer ring gear (module 1.0) and the pin for the inner ring (Module 0.8). The use of a CAM generated cutting path allows for a greater precision of the parts geometric shape and a reduced production time. All due to the fact that all operations are performed in a single production cycle time, while the traditional process requires additional re-taking operation. So significant time savings were archived alongside with improved quality.

Today Bumotec has acquired a solid experience in this type of process, through regular requests from clients. We even developed a process to machine beveled gears with a new type of milling tool specially designed for this purpose. Our Applications department tested this tool and adjusted the programming method to facilitate the manufacturing process. A ring gear and an endless screw made out of titanium had emerged in a very short time, as it took one week for our team of specialists, between the receipt of drawings and the production of the first part. The solutuion for the customer was a complete manufacture from bar stock within single cycle for the precision gears with modules 0.3 and 0.5. The benefit for the customer was drastic reduced cycle time and also reduced waste material.

An additional benefit for customers is the Bumotec showroom in Sâles which will convince customers of Bumotec ́s ability to support machining projects, while keeping in mind that all challenges must remain synonymous with profitability, safety and growth.

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