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Climb milling refers to a machining method in which the movement direction of the tool teeth is the same as the tool feed direction when the tool rotates, as shown in Figure A. During climb milling, the cutting thickness (green area in Figure A) is maximum when the tool tip starts to contact the workpiece, […]
Figure A shows a cross-section of a drill bit in a hole being drilled. The pink colour shows the area of the drill bit and the blue colour shows the chip space of the drill bit (the space from which all the chips produced during drilling need to exit). The difficulty with drilling is that […]
1. milling plane Plane milling uses the circumferential edge or end edge of the milling cutter to feed in a direction parallel to the workpiece plane to form a plane parallel to the feed direction of the workpiece, as shown in Figure 1-1. 2、milling groove Milling groove (usually refers to milling at least one section […]
1. Chip discharge mode: Straight flute taps: The cutting edge is straight and has no helical rise angle, so the chips generated during the tapping process are discharged in a straight direction, usually suitable for through-hole thread processing. Since the chips are discharged directly downwards, for long through holes and continuous production, poor chip removal […]
Material to be processed Pre-hardened steel/quenched and tempered steel<35-48HRC Quenched steel<48-52HRC Quenched steel<48-60HRC diameter Rotation speed (rev/min) Feed speed mm/min Rotation speed (rev/min) Feed speed mm/min Rotation speed (rev/min) Feed speed mm/min cutting depth Side milling ap≤1.5D ae≤0.05D Side milling ap≤1D ae≤0.03D Side milling ap≤1D ae≤0.02D 3 14700 840 13130 530 11550 460 4 7560 […]
The speed of tapping depends on the type of screw tap, the number of teeth of the tapping part, the material, the type of material to be cut, the shape of the bottom hole, the cutting oil, etc. The speed is adjusted under the speed setting, so it must be very careful. Notice. When the […]
Blade classification Applicable to grades coating Features application turning inserts steel T90 Uncoated Cermet materials are not compatible with the materials being processed, have good red hardness at high temperatures, have good surface finish and long service life. Suitable for processing 45# steel, 15# steel, A3 steel, 40 chromium and 42 chromium semi-finishing and finishing. […]
Material to be processed Carbon steel/alloy steel/cast iron < 20-30HRC Pre-hardened steel/quenched and tempered steel < 35-48HRC Stainless steel/tool steel < 25-35HRC hardened steel<48-52HRC diameter Rotating speed(rev/min) Feed rate(mm/min) Rotating speed(rev/min) Feed rate(mm/min) Rotating speed(rev/min) Feed rate(mm/min) Rotating speed(rev/min) Feed rate(mm/min) Depth of cut Side milling ap<1.5D ae<0.1D Slot milling ap<0.3Dae<1.0D Side milling ap<1.5D ae<0.1D […]
Alloy Screwdriver Tap Installation, Punching Off and Unscrewing 1、Installation In general, a manual installation spanner should be used to install the wire sleeve. Wire nut into the installation spanner, rotate the mandrel so that the wire nut through the installation of the spanner on the guide threads screwed into the bottom hole, and make it […]
Common parameters and their units D Diameter (mm) FN Feed per Reovolution(mm/rev) ap Cutting Depth(mm) Fz Feeding per Teeth(mm/tooth) ae Cuting Width(mm) Z Number of teeth Vf Feed Rate (mm/min) n Spindle Speed(rev/min) Vc Cutting Speed(m/min) L Length(mm) Q Rate of Metal Removal(m'/min) Tc Processing Time (min)
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