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弧形刨刀是在学习苏联以及我国各兄弟厂的先进经验基础上改进的。弧形刨刀适用于加工余量大而又不均匀的冷硬铸件。刀具几何形状如附图所示。刀片材料为 BK_6或 BK_8,刀杆材料为45号钢。刀具特点:1)刨刀刀头具有 R20～25毫米的圆弧,因此刀头成为曲线形状。主偏角φ在切削刃上每点都在变化,刀尖上φ=o,因此相应地增强了刀具的强度,特别是抗冲击性能大为改善;2)由于刀具
The arc-shaped planing knife was improved on the basis of studying the advanced experience of the Soviet Union and the various brother factories in our country. Arc cutter for machining allowance large and uneven chilled castings. Tool geometry as shown in the figure. The material of the blade is BK_6 or BK_8, and the material of the cutter bar is No. 45 steel. Tool features: 1) Planer cutter head with R20 ~ 25 mm arc, so the cutter head into a curved shape. The main declination angle φ changes at each point on the cutting edge, φ = o on the tip, thus correspondingly enhancing the strength of the tool, especially the impact resistance; 2)