The added value of SMEs in Shandong Province, main business income, and profits and taxes accounted for more than 70% of all above-scale industries, but there are outstanding issues such as low industrial level and unreasonable structure. For this reason, Shandong Province has stepped up efforts to eliminate outdated production capacity for SMEs this year. As of the first half of the year, small and medium-sized enterprises in the province have eliminated 7,030 outdated equipment and achieved 70% of the annual target. Starting from next year, the special funds for small and medium-sized enterprises in Shandong Province will focus on supporting the innovation and transformation of energy-saving and emission-reducing companies, granting free funding for independent innovation projects, and applying loan interest subsidies for technological transformation projects. At present, national special projects and provincial special projects have been issued, and funds are gradually being put in place.
Slow-wire cutting processing, also known as slow wire electrical discharge machining (SWEDM), is a precise machining technique used to cut intricate shapes and contours in conductive materials. The process involves using a thin, metallic wire that is continuously fed through a workpiece while an electrical discharge is passed between the wire and the workpiece. This electrical discharge erodes the material, allowing for accurate and precise cutting.
Unlike traditional machining methods, slow wire cutting processing does not involve direct contact between the cutting tool and the workpiece. Instead, a small gap is maintained between the wire and the workpiece, typically filled with a dielectric fluid that acts as a coolant and electrically insulating medium.
The wire used in slow-wire cutting processing is typically made of brass or other conductive materials. The wire is continuously fed through the workpiece in a controlled manner, guided by computer numerical control (CNC) systems. As the wire passes through the workpiece, an electrical discharge is generated between the wire and the workpiece, creating small craters in the material.
Slow-wire cutting processing offers several advantages over traditional machining methods. It allows for precision cutting of complex shapes and contours, even in hard and brittle materials. The process is capable of achieving high cutting speeds and does not create thermal distortion or burrs on the workpiece. Furthermore, slow-wire cutting processing is a non-contact method, which reduces tool wear and prolongs the lifespan of the wire.
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