Tools for turning having a cutting portion of the tool. Cutting tools is one of the most widely used tool. Structural elements working tools is part of the generation and processing chips parts, including blades, the chips broken off or rolled structure or container storage chip chip space, cutting fluid channels, etc.
Working part is to produce tools and processing chip parts, including blades, the chips broken off or rolled structural elements of the structure, the storage capacity of the chip or chip space, cutting fluid passage and the like.
Cutting tools by the main part of the cutting edge, the secondary cutting edge, rake face, flank the main and sub flank, sharp knife composition. Tools, the cutting portion and a shank (ie clamping portion) of the main methods of combining integral, welded, mechanical clamping and welded - mechanical clip-on. Mechanical clip-carbide blade turning to avoid stress and cracking during high temperature soldering, and the handle can be used repeatedly. Mechanical clip-on tools generally used screws and plate clamp the blade, mounted indexable mechanical clip-on tools. After blunt blade indexing can continue to use, and stop short changing time, it has achieved rapid development.
Cutting tools by the main part of the cutting edge, the secondary cutting edge, rake face, flank face and flanks and other components. It is determined by the geometry of the anterior horn γo, posterior horn αo, the main angle κr, blade angle γS, vice declination κr 'and nose radius rε. Select Tool Geometric parameters affected by many factors, must be selected depending on the circumstances. Rake γo depending on the composition and strength of the workpiece material to select, cut higher strength material should take a smaller value. For example, carbide rake angle when taken through carbon steel 10 ° ~ 15 °; take -2 ° ~ -10 ° When cutting hardened steel or chromium-manganese steel. Generally after taking angle 6 ° ~ 10 °. Main angle κr according to rigid conditions of the process system, generally take 30 ° ~ 75 °, whichever is greater rigidity difference in the car stepped shaft, due to the need to cut way to take greater or equal to 90 °. Rε corner radius and relief angle κr 'general press surface roughness requirements and selection. ΓS blade angle is determined according to edge strength and direction of the chip required. Turning in front of the pattern (Fig. 2) is mainly based on the nature of the workpiece material and tool material may be. The simplest is planar, flat type positive rake angle for high-speed steel tools and finishing with carbide tools.
