Carry out an analysis to thread machining

2 √ . Can avoid to cause bend and tilt, and cause whorl tooth model not complete and askew. 2, whorl tap example (one) to M8 the following small diameter whorl undertakes tap, get treatment in the platoon commonly, with general stretch collet clip is held machine attack with silk, below platoon bed unit foot switch, attack the hand when cutting to help work, drilling machine rotate speed is used commonly 480, 860 turn / cent, add some of rape oil appropriately. In tap process, drilling machine main shaft maintains do not move, silk is attacked feed and retreat a knife complete armrest control, rely on feel to feel, if silk attacks bear to increase, can step next open inverting that close instantly, OK and convenient and rapid. (2) the ground attacks silk exit. Avoid silk to attack so break off, go back and forth between treatment so, improve working efficiency, apply to batch production. (3) the treatment to stainless steel material. In practice, the tap that receives stainless steel data is a more difficult issue. How to improve work efficiency? This is about to attack silk undertake repairing grinding, make cutting taper is lengthened, it is 4 ° commonly, make calibration part leaves 4t, can reduce cutting ply and cutting to be out of shape so; In the meantime, bits of be sure to is easy also and curly and eliminate. The horn after the horn before increasing is mixed, make γ =15 ° , α =25 ° , in order to increase cutting capacity, reduce attrition. Such, although the intensity of tooth is reduced somewhat, but because cutting cone angle is lesser, cutting part lengthen, make the cutting bear of every tooth was reduced, the intensity impact to tooth is not so big. After be being attacked with awl of this kind of head, 2 awl and end awl machine reoccupy, can raise the quality of whorl and surface roughness. 3, silk attacks long grind. Silk is attacked happen to wear away and die after blade, can grind the sharp sex that restores it through repairing, usually, advocate if repair,grind tooth around horn. (One) before cutting blade long grind. The passivation of cutting blade classics that attacks when silk or stick bits, reduce its consequently when sharp sex, can use column form oilstone before abrade cutting blade. Abrade when, besmear on oilstone a few engine oil, oilstone control is smooth, the attention does not want the little garden part tooth. Abrade hind clean tap clean. When the tooth that attacks when silk wears away to become collapse tooth to the limit, can grind in the knife on use a shape emery wheel to repair those who wear tooth in front. Repair after been grind, oilstone of the form that use post undertakes abrade, rise mix before tooth the surface roughness of the chamfer that hold bit. (2) of cutting blade hind of horn long grind. When the cutting blade that attacks when silk damages, the part after cutting blade can be built on general emery wheel. Repair the consistency that cutting awl should notice when grinding. When rotational silk is attacked, the blade needle that a blade ages does not contact emery wheel, lest the blade tooth is pointed,grind. 4, the quality state of tap itself is having immediate effect to the whorl aperture of treatment, be in consequently when choosing silk to attack, want when to notice: (one) the whorl face that silk studies and look bits chamfer want smooth. If cut bits tumor, stick bits or rustily when, want to be eliminated clean, with cutting of complete block up eliminate. The tooth of the tooth form of tap and cutting part wants sharp, do not get injury of blade having shoot, burr, carbon to wait, be in otherwise attack when cutting, can stick bits and destroy screw surface surface roughness. (2) machine the part holding clip that attacks with silk should be rectified solely, serious to wearing away should undertake repairing grinding; After the square head edges and corners that the hand attacks with silk wears away, should repair grind small, the clip when preventing tap is held not firm, generation skids. (3) the precision that should achieve workpiece whorl aperture, the silk that should choose corresponding precision is attacked undertake machining. The view that the silk of a few pairs of whorl in working practice attacks is only above. Believe to tickler is not had on the thing, want serious ground, attentive job only, can progress somewhat on skill. CNC Milling