Menu

Connect with us

Tap / screw machine of high quality M3|M4|M5|M6|M8|M10|M12 for YAMAWA titanium screw machine

price:USD$17.50
discount 70% in 2018-09-22 to 2018-09-24
price: USD$ 12.25
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
views:0
Search Similar or mail to saler or send message to saler

Pay with PayPal, PayPal Credit or any major credit card

 

This spiral tap can process ordinary steel, No. 45 steel, tool steel, thin stainless steel and so on.

Characteristic:
1 can be tapped to the bottom of the blind hole
2 cutting will not remain
3 easy to eat into the bottom
4 good machinability
Spiral groove tap is the most commonly used, according to different working conditions using different spiral angle, the common is right-handed 15 and 42 degrees. Generally, the larger the helix angle is, the better the chip removal performance is.

It is suitable for making ordinary thin stainless steel, and ordinary steel is more durable.

M3-M12 is 10 package and M14-M24 is single package.Several common tap coatings

 Development of tap coating technologyThe main purpose is to improve production efficiency and reduce production costs. Mainly in the following points:
  • Increase surface hardness and wear resistance of tap
  • Reduce the friction between the workpiece and the workpiece
  • Smooth chip removal
  • avoidPremature damage of tap
  • Improve the surface quality of workpiece
  • Tap can be used repeatedly coating
  • Increasing chip speed and shortening machining time

The common tap coating mainly has the following several kinds:

  • The appearance of TiN (TitaniumNitride) is goldenPVDCoating process is easy to produce, low cost, wide range of applications, can generally improve the tap life of about 300%;
  • TiCN (TitaniumCarbonNitride) blue gray, PVD coating process, multi-layer coating with layered structure, generally used for difficult to machine materials tapping, such as quenched and tempered steel, wear-resistant steel, etc., in the steel processing advantage is remarkable;
  • TiAlN (TitaniumAluminumNitride) looks black and black, and also uses PVD technology. It is mainly used for casting, such as cast iron, cast aluminum wear-resistant materials tapping, and high temperature and high speed cutting. Under the condition of poor cooling performance, tapping the coating is the first choice;
  • Vap(Vaporized) high temperature oxidation treatment, to tap into the high temperature of 530 DEG C to tap water vapor generated on the surface of a processing technology of black Fe3O4 is felt, the main role is to increase the adsorption of cutting fluid lubrication performance, and adhesion and inhibition of tumor cutting, a very wide range of applications, especially in medium and low strength steel tapping the effect is particularly significant;
  • A kind of CH carbon, mainly used for tapping soft aluminum and its alloy materials;

Common problems and solutions in tap tapping process

 As everyone knows, tapping is a difficult process. Although we want to tap a best performance, "die", but often backfire, actualThere will always be problems like this or that in tapping. If you have a problem, you have to figure out how to solve it, even though it's hard sometimes.

The reasons for the work, Bo master contact with many tapping process of all kinds of difficult problems, some of these problems are indeed very difficult. The common problems and solutions in tap tapping process are listed as below, for reference.

 

Stop regulation
Improper selection of tapsChoose suitable taps (according to material, pass, thread tolerance, etc.).
Excessive speed

Reduce the speed;

 

Improve coolant quality and improve cooling and lubrication effect.

Generative cutting tumor

Replace new tap;

 

Using coated taps;

Improve coolant quality and improve cooling and lubrication effect;

Remove cutting and damaged cutting teeth.

Chip clogging

Selection of more suitable cutting parameters (including spiral groove, cutting angle, etc.);

 

Group taps should be used when necessary.

Tap burrCareful removal of burrs.
Positioning and clamping inaccuracy

• tapping fixture with axial and radial automatic adjustment;

 

Check the bottom hole, tap and spindle concentricity.

Tapping feed instability

• improve tapping procedure;

 

Check the drive screw of machine tool;

Use tapping fixture with length compensation function.

Unreasonable grinding of tapTry to ensure that the cutting parameters of regrinding taps are consistent with new taps.
Axial pressure is too large

Adjust tapping axial pressure;

 

Use tapping fixture with length compensation function.

Decayed teeth and rough
Improper selection of tapsChoose suitable taps (according to material, pass, thread tolerance, etc.).
The speed is too high or too lowSelect the recommended tapping speed.
Serious tumor

Replace new tap;

 

UseCoated tap

Improve coolant quality and improve cooling and lubrication effect;

Remove cutting and damaged cutting teeth.

Chip clogging

Selection of more suitable cutting parameters (including spiral groove, cutting angle, etc.);

 

Group taps should be used when necessary.

Tap burrRemove burrs.
The bottom is too smallUse reasonableBottom hole size
Insufficient cooling and lubrication

Use reasonable cutting fluid;

 

Increase the supply of cutting fluid properly.

Tap single tooth cutting too large

Increase the length of the cutting cone properly;

 

Replace group tap.

Through the rules
Tap wear is seriousReplace new tap.
Improper selection of tapsChoose suitable taps (according to material, pass, thread tolerance, etc.).
Screw thread type parameter error

Switch taps with better performance;

 

• tapping fixture with length compensation function.

Premature wear of tap
seeDecayed teeth and rough- seeDecayed teeth and rough
The bottom of impact hole of cutting edge

- control the bottom hole and the effective depth of thread;

 

• use E or even F cutting edges when necessary.

No coating or poor coating qualityAccording to the properties of the tapping materials, use suitable coating taps.
Tap life is short
seePremature wear of tap- seePremature wear of tap
Annealing of taps during RegrindingChange grinding parameters (grinding wheel type, speed, coolant, etc.).
The material hardening is serious when drilling

Change bits in time;

 

Adjust drilling parameters (speed, feed, etc.);

Material annealing before tapping.