Usimicron specializes in the production of highly accurate punches and dies. The company's leaders decided: "We want to increase wire cutting and cancel grinding." This important step began with the official selection of Mitsubishi's slow wire cutting machine. Mr. Akaub Perrenoud is the owner and leader of the French company Usimicron. Founded in 1990, the company specializes in the production of single and replacement parts for cutting tools and punching tools, especially for high precision punches and dies. Currently, five professional technicians in Besançon, eastern France, produce precision parts for tool manufacturing. In addition to local small and medium-sized enterprises, these orders also include large enterprises and international enterprise groups. “We are the telecommunications technology and medical technology industry, as well as auto parts suppliers, producing the parts and small parts they need,†Mr. Perrenoud said.
Minimum diameter and internal structure: spare parts for cutting and punching tools required for the production of medical technology or telecommunications technology require the highest precision. Usimicron, as a contract manufacturer, produces punches and dies for cutting tools and punching tools according to drawings or samples. Usually a spare part for the production of consumable parts. For punching tools, the precision of the part often determines the reliability of the tool. As an interchangeable part, it must be accurately matched to the complex cutting tool and other accessories of the punching tool.
Must overcome the "difficulties" in materials
As Mr. Perrenoud said, the demand for orders is expected to be controlled at ±2 microns. The geometry of the produced punches and dies is often very complex. In addition to the processing radius of less than one tenth of a millimeter, both the punch and the die use special steel and tungsten carbide materials. It involves some mold inserts, such as punching and bending small plug connectors, or grooving SIM cards for telecommunications. Similarly, the requirements for the production of mold inserts for cutting and punching tools required by the medical technology and automotive industries are also increasing.
“In the past, grinding was used to achieve the required shape of the workpiece. The disadvantages of grinding are long time, high labor intensity and high labor costs. If you want to operate two grinding machines, you need two experienced and trained. Professionals operate. They must be very careful and careful about the grinding process, as well as a series of settings on the machine, and then continuously monitor the grinding process,†Mr. Perrenoud said. In Europe, the cost of production sites is high, and contract manufacturers are competing with many companies that have their own advantages, such as companies in India and Asia. If you want to gain a firm foothold, you must choose a production process that is both economical, accurate, and reliable.
Unmanned operation makes wire cutting more economical. A few years ago, Mr. Perrenoud began experimenting with wire cutting some parts. For a variety of reasons, he decided to choose Mitsubishi's slow wire cutting machine, and recently obtained technical consulting services from the French brand exclusive agent Delta machine. He has always relied on the services and capabilities of Delta employees. Therefore, he is also looking forward to the high-quality configuration of the wire-cutting machine for the processing, especially after the recent purchase of the MV1200R, which is even more convincing.
Continuous operation: The MV1200R wire-cutting machine runs a 48-hour MV1200R with DFS finishing motor at Usimicron with a surface roughness of 0.1 micron. To ensure dimensional accuracy of less than 2 microns in high-speed machining, modern linear motor technology and bushing linear motors are required, along with linear encoders on all axes and fast optical data transmission systems. Although wire cutting is still a time-consuming process, it significantly increases the competitiveness of Usimicron. Because this machine is completely out of service after a few hours of preparation. Mr. Perrenoud stressed, “This aspect reduces personnel costs, and on the other hand, due to the process reliability of the process, you can make full use of non-production time – such as night shift time. In order to ensure unmanned processing for as long as possible, Usimicron The experts decided to cut more punches and dies from a piece of material. When machining a geometry with extremely complex dies, the machining time was up to 48 hours due to the large number of mold grooves and die holes."
In addition, because the machine tool has a reliable automatic wire threading function, the MV1200R machine can continue to run without problems during this period, without any operator. In addition, there are some unobtrusive small details, such as the use of low-cost and uncoated brass wire to cut a large amount of material, which is more economical. The machine program and operator interface are easy to understand and conform to the engineering design, which enables the company staff to apply the mobile phone bed technology in a short time. These make the MV1200R preparation process fast and easy to operate.
Mr. Perrenoud has been deeply impressed by the advantages of Mitsubishi Electric's slow wire cutting machine. He summed up his excellent experience in the process of using it: “It is very meaningful for us to perform wire cutting on Mitsubishi Electric's reliable and economical machine. We can even compete with India and the Far East. With this MV1200R wire-cutting machine, we are able to complete customer orders economically, flexibly and quickly. At the same time, we have also enhanced our competitive advantage and the French business has been better protected. â€
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