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精密一级主轴是精密机床的重要零件,它对精密机床的质量起着主要影响,因此须经表面硬化处理,使表面硬而耐磨,心部则保持原来的韧性,以提高质量和使用寿命。我厂生产的精密机床主轴(图1),系用65钢制成,技术要求很高,精密度达2微米,同心度2微米,光洁度▽▽▽▽_(12),淬火后表面硬度Re55～60,心部硬度Re25～30。在实际生产中用中碳锰钢65来制造精密
Precision level spindle is an important part of precision machine tools, it has a major impact on the quality of precision machine tools, so to be hard-surfaced to make the surface hard and wear-resistant, the heart is to maintain the original toughness to improve quality and service life . I plant the production of precision machine tool spindle (Figure 1), the Department of 65 steel made of high technical requirements, the precision of 2 microns, concentricity 2 microns, finish ▽ ▽ ▽ ▽ _ (12), after quenching the surface hardness Re55 ~ 60, heart hardness Re25 ~ 30. In the actual production of carbon steel with manganese 65 to create precision