Analysis of the reason is that the cutting allowance of the second pass is too large

The reason for the analysis is that the cutting allowance of the second pass is too large, resulting in high cutting resistance. If it is divided into two steps of rough boring and semi-finish boring, it will increase the cycle time. Therefore, we changed the single tool to a composite tool with a stepped structure, and redistributed the cutting allowance reasonably. The rough boring allowance of the front end tool reached 5?mm, and the semi-finishing boring allowance of the rear end tool was 5?mm. , Due to the first rough boring and semi-fine boring of the valve tappet hole, the cutting load is relatively reduced, and the distribution of the cutting allowance is reasonable, and the coolant supply conditions are improved, the heat dissipation is good, the processing quality is stable, and the machine tool spindle is no longer stuck. . The structure of the cylinder block and head is relatively complex. According to the sequential processing sequence of the working steps, the multiple working steps of the related elements are often combined into a special tool. When the workpiece is positioned and clamped, the processing of multiple related elements is completed in one pass. To ensure their position accuracy and process takt time.

      Error analysis of CNC processing manufacturers, the pursuit of overall internationalization of operations. In the initial stage of machine tool enterprises, based on core resources and comparative advantages to carry out international business, and then continue to expand and extend the industrial chain to improve comprehensive competitiveness, from specialized management to comprehensive management, from single product service providers to comprehensive product services Provider shift. Mistaken international brand Chinese or Chinese brand internationalization. According to the introduction of cnc processing manufacturers, this situation needs attention. First, they are eager for brand replacement and eager to affix Chinese brands after mergers and acquisitions; first, they are eager to innovate foreign brands and carry out Chinese transformation of foreign brands, and there is no reasonable transition space; third, they think that China A famous brand or a Chinese well-known trademark is a global brand.

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