Connect with us

Metric tool tap die set hand machine tap diestock suit sets of silk thread

discount 70% in 2018-09-19 to 2018-09-21
price: USD$ 1058.85
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
Search Similar or mail to saler or send message to saler

Pay with PayPal, PayPal Credit or any major credit card

Antique outdoor classical light long sheepskin Lantern restaurant hotel balcony decoration customized advertising Chinese red lanterns wedding dragon road 2017 new PVC lighting lamp tube Wedding Pearl lotus lotus buds wedding dragon road 2017 road of the new PVC lighting lamp tube wedding dragon road lotus lotus buds candy yarn bag wedding candy box bag bag gift bag of sugar bag creative wedding a small cylindrical windproof bag supplies sugar fragrance wax oil smoke-free Wedding Candle glass romantic European birthday candle with cervical intervertebral disc, lumbar confession pain lumbago accretion to highlight the neck joint pain plaster pain can stick Bigfoot trolley suitcase suitcase all children baby rice Bigfoot truck trolley conjoined disposable non-woven protective clothing thickened breathable dust bath enzyme purification epidemic prevention work clothes blowing candle lamp painting sonic candles candle lamp electronic candle blowing projection Shoot induction lamp Nightlight UAV aerial HD 500W four aircraft remote control aircraft adult toys to send [spree] Sanjie plaster breast neck lymph tubercle hyperplasia with enlarged axillary inflammation with accessory disappear paste clean clothes coat coat protection summer stripe dust-proof work long sleeved white powder a breathable clothing electrostatic UAV aerial HD 500W four axis aircraft remote control aircraft to send [adult toy spree] bra underwear underwear underwear sterilization cabinet disinfection machine small household ultraviolet ozone sterilizer Dichotomanthes thickened plastic tank 50-1500L liters large aquaculture fish box turtle global tile turnover box new car scissor lift electric hydraulic cargo lift climbing car mobile lifting platform for goods dragon road 2017 new PVC ladder wedding wedding lighting lamp tube dragon road lotus lotus buds candy wedding candy package yarn bag bag Creative gift bag bagging back sugar wedding Qing sugar bag lumbar spine with activities of lumbar disc pain lumbago accretion to highlight the neck joint pain plaster pain can stick dragon road wedding 2017 new PVC lighting lamp tube wedding dragon road lotus lotus buds Sanjie plaster breast axillary neck lymph tubercle hyperplasia enlargement inflammation paste paste Furu disappear paste



Tap use method:

(1)When tapping, insert the nose to tap the center line and the center line of drilling.

(2)Both uniform rotation and slightly pressure to tap the feed, feed after don't add pressure.

(3)Each turn tap a reversal about45°To cut off the chip, so as to avoid blocking.

(4)If the increase in rotational force can not rotate or tap tap difficulties, will break.

Daily maintenance:

1At the end, the tapping orifice chamfering; tap hole coaxial with the workpiece; tapping should begin to apply an axial force to tap into the breakthrough after a few laps will no longer need to exert axial force.

2When the tap calibration part into the screw hole, each positive half turns to a circle to return1/41/2The cutting ring, broken down again after school; take the through hole, often exit tap chip.

3In tapping the steel workpiece when cutting fluid tapping in cast iron workpiece, can add a little kerosene; with a taper, and then two attack and three attack, must be screwed in the screw tap.

4When threading the workpiece, end to chamfer, pull the tooth end surface shall be perpendicular to the axis of the work piece; threading began to be applied to a large number of axial pressure, rotate the corresponding pressure; when the pulling teeth cut threads on the workpiece, don't add pressure.

5From the set of silk to make the chip breaking, should be timely, reverse pull teeth often.

6The workpiece should be firmly fixed in the clamp, a clamping device; when the tap is broken, a hand to touch off don't clamp, chisel or punching out, broken wires must wear protective glasses.

Using the method of die:

With the wafer die when processing thread is half cutting half squeezing state. As the diameter of cutting part die diameter and die diameter, especially to bear large cutting force, it should have the strength and cutting ability. Taking into account the screw and the screw hole with the die cut out should have a certain gap, and taking into account the amount of wear, so die design, should make the diameter and diameter less than in diameter, the diameter of the thread in nominal size.jmM0.8The inner diameter of threadDwithin=0.584Mm, the diameter of dieDIn the plate. ,= 0.55Mm,M0.8The thread's diameterDin=0.67Mm in diameter should be to dieDBoardmx= 0.67Mm, in general0.66—0.67Mm. In actual production, because the diameter of die wear caused by scrap rarely, so in the design of the diameter of the wear volume can be smaller. But if the size is too small, then push the pressure screw will get increased, so die diameter should not be too small. The outer diameter of the thread is by cutting metal in die extrusion of plastic deformation and. In order not to block the metal workpiece broken, die diameter should not participate in the work, to leave a gap between it and cut. Such as cuttingM0.8Die diameter minimum thread.0.8Mm, average diameter to increase0- 02^0.03Mm.

Matters needing attention:

In the end of the first bolt blank processing45The degree of chamfer, to prevent the generation of die suddenly in the guide blade loading phenomenon. At the same time to ensure that the circular tooth or hexagon die cut blank vertical bolt.
As far as possible to reduce the diameter of the bolt blank, and the diameter of the bolt to ensure high tolerances near the lower limit, so that you can make to the cutting force generated during tapping.
With a cutting edge inclination portion of the die, which can ensure that the chip export machining area.
The coolant is correct, and the cooling liquid enough at the cutting area.
In the regulation of open die, not to die open, open die of workpiece scratching rather than cutting in when tapping. Uniform rotation adjustment screw, the die opening closed about0.15 mm. If the pressure in the die is only one side of the die may cause damage.