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Home/Products/Carbide Hot Melt Drill

Carbide Hot Melt Drill

Fdrill, also known as cemented carbide hot melt drill, has been successfully applied for more than 30 years. It has changed the traditional drilling and fastening process solved the problem of tapping and fastening thin metal plates and thin metal pipes.

Fdrill is made of wear-resistant and high-temperature resistant tungsten carbide. When the high-speed rotating drill bit contacts the workpiece surface and applies downward axial pressure, the head of the hot-melt drill bit rubs against the metal and generates 650° ~ 750° high temperature, which makes the metal near the hot-melt drill soften rapidly. While the hot-melt drill extrudes and penetrates, the softened metal part is stretched into a metal batch front (boss) with three times the original thickness.

The whole process only takes 2-6 seconds, The boss can be used for extrusion tapping, thread forming, strengthening the coupling effect, and can also be used for bearing support seat, bifurcation throat connection and other purposes. Because the whole process of machining is chip-free, the processed thread can bear high tensile force and torque, which can completely replace the process of drilling before welding or riveting nut.

  • Improve production efficiency, rapid drilling, rapid bushing forming, the whole process only takes 2-6 seconds.
  • Improve product quality, simplify the process, easy to operate.
  • The hole position accuracy is high.
  • The extruded screw teeth have high tensile strength and torsion resistance.
  • The production cost is reduced, the operation is simple and easy to master, and no additional equipment is needed to replace the expensive welding process.
  • Clean and environmental protection, no debris.
  • Save raw materials.
Thread size Pitch or teeth (inches) Fdrill diameter Φ(mm) Drilling machine speed(RPM) Power of drilling machine(KW) Feed rate (mm/mim) Drilling time (Second) Tapping machine speed(RPM)
M3 0.5 2.7 3000 0.6 100 2 1350
M4 0.7 3.7 2600 0.7 120 2 1000
M5 0.8 4.5 2500 0.8 150 2 800
M6 1 5.3 2400 1 150 2 650
M8 1.25 7.3 2200 1.3 150 2 500
M10 1.5 9.2 200 1.5 150 3 400
M12 1.75 10.9 1800 1.7 150 3 330
M14 2 13 1600 2 150 4 300
M16 2 14.8 1400 2.2 150 4 250
M18 2.5 16.7 1400 2.5 150 5 220
M20 2.5 18.7 1200 2.7 150 5 200
G1/8 28 9.2 2000 1.5 150 3 400
G1/4 19 12.4 1600 2 150 3 360
G3/8 19 15.9 1400 2.3 150 4 300
G1/2 14 19.9 1200 3 150 5 270
G3/4 14 25.4 1000 3.5 150 6 200

Important note:

  • The parameters in the above table are for 2mm thick materials, the thicker the material, the higher the power and the lower the speed.
  • For thicker materials, the processing time is increased by 1 second for every 1 mm increase.
  • When drilling stainless steel, if the diameter of screw teeth is M6 or above, it is suggested that the diameter of hot melt drill should be 0.1M larger, and the drilling speed should be reduced by 15%.
  • When drilling aluminum or other non-ferrous metals, the drilling speed should be increased by 50%.
  • If the thickness of metal material is more than 3mm, in order to obtain long service life of Fdrill, it is suggested that the diameter of hot melt drill should be larger than 0.1mm.
  • In order to use our products correctly, please contact us and tell us the specific processing materials and requirements. We will recommend the most suitable equipment and processing parameters for you.
Thread size Fdrill diameter Φ(mm) Maximum penetration thickness of Fdrill Φ Chuck Total length of working face
Round short drill Flat short drill Round drill Flat drill Short drill Long drill
M3 2.7 1.7 2 2.4 3.7 6 6.7 8.7
M4 3.7 1.8 2.2 2.6 4.2 6 8.1 10.3
M5 4.5 1.9 2.4 2.7 4.6 8 9.2 11.8
M6 5.3 2 2.5 2.9 5 8 10.3 13.5
M8 7.3 2.2 2.9 3.3 5.9 8 13.5 18.1
M10 9.2 2.6 3.2 3.7 6.6 10 16.8 22.5
M12 10.9 2.8 3.5 4 7.2 12 19.8 26.4
M14 13 3 3.9 4.5 7.9 14 23.5 31.3
M16 14.8 3.3 4.2 4.8 8.5 16 26.9 35.4
M18 16.7 3.5 4.6 5.2 9.2 18 30.4 39.7
M20 18.7 3.8 5 5.7 9.9 18 34.1 44.3
G1/8 9.2 2.6 3.2 3.7 6.6 10 16.8 22.5
G1/4 12.4 2.9 3.8 4.3 7.8 12 22.4 29.8
G3/8 15.9 3.4 4.5 5 8.9 16 28.9 37.9
G1/2 19.9 4 5.2 5.9 10 18 36.3 47
G3/4 25.4 4.8 6.2 7 10.4 20 46.4 59.6

Note: the parameters in the table above are conventional hot melt drill bits. If you need to process thin materials or small inner diameters, we can customize the shape and length of the drill bit according to your requirements.

Name Description
Round Fdrill Round Fdrill When Fdrill penetrates the workpiece and stretches to form a bush, a convex ring is formed on the surface of the workpiece. This convex ring is suitable for making thread seal or nut washer.
flat fdrill Flat Fdrill The middle part of Fdrill has a milling cutter edge, which penetrates the workpiece to form a bushing by stretching, and cuts off the convex ring on the workpiece surface (milling and chamfering), so that the surface of the workpiece is smooth.
long and short fdrill Short Fdrill It is used to penetrate the workpiece with the thickness of 0.8 mm / 3 mm. The middle cylinder part of fdrill is short, and the hole formed after extrusion is conical, which can increase the tapping strength.
Long Fdrill It is used to penetrate thick workpiece or need to process straight hole. Suitable for penetrating workpiece thickness range: 3mm-12mm. The cylindrical part of the bit is long, and a long hole is formed after extrusion.


TC long Fdrill M5C
TC long Fdrill M8C
TC long Fdrill M10C
TC long Fdrill M5C


How to maintain cemented carbide saw blade?2021-11-17T02:55:48+00:00

In order to maintain good work efficiency and maintain cemented carbide saw blades, these points should be noted:
Cemented carbide saw blade is a multi blade tool widely used for sawing aluminum profile and wood. Since the birth of cemented carbide saw blade, it has attracted the attention of many enterprises with its excellent cutting performance.

Now, no matter small and micro enterprises or large-scale enterprises, cemented carbide saw blades can be seen in their production workshops.

As a widely used saw blade, it can be said that many saw blades are basically in full load working state after being purchased into the factory.

Some saw blades have not been removed since they were installed on the full-automatic aluminum cutting machine. They will not be removed from the aluminum cutting machine until the saw teeth of the saw blade are worn out and can not be used.

Although the saw blade itself is a consumable and has a certain service life, if we pay a little attention to the daily use, it can effectively prolong the service life of the saw blade. Thus saving a lot of expenses for enterprises.

In this regard, in our daily processing links, we should strengthen the training of employees and standardize their operation, so as to avoid unnecessary wear and tear.

Method for maintaining cemented carbide saw blade

At the same time, in order to prolong the service life of the saw blade, it is not enough to standardize the operation of employees. When appropriate, we also need the help of third-party devices to effectively prolong the service life of the saw blade.

As the saying goes, a good horse must be equipped with a good saddle. If an efficient machine wants to give full play to its full performance, its operator must be very familiar with it.

For cemented carbide saw blade, although it is a small part of aluminum cutting machine, it can determine the accuracy and precision of product sawing. Therefore, in terms of standardizing the operation of employees, we should focus on the operation of saw blade.

In this regard, from the perspective of processing links, in order to effectively prolong the service life of the saw blade, we must start from standardizing the operation of using the saw blade.

What are the key points of cemented carbide saw blade maintenance?

  1. Clean the saw blade: Whether before or after the use of the saw blade, we should check whether there is dirt on the surface of the saw blade. If there is dirt on the surface of the saw blade, it must be removed.Some large-scale aluminum profile processing enterprises require employees to check whether there is dirt on the surface of the saw blade before loading the saw blade on the issue of standardized operation of the saw blade.When checking the surface of the saw blade, we should focus on whether there is dirt at the hole diameter, because once there is dirt at the hole diameter, it will affect the tightness of the flange and even make the saw blade swing during operation. The correct way is to put the unused cemented carbide saw blade in the moisture-proof carton, or hang the saw blade in a dry environment.
  2. Keep the blade when not in use: The surface of a brand-new saw blade is very smooth, but after a long time of use, the saw body of the saw blade often carries a lot of dirt. After using the saw blade, we should check whether the dirt is attached to the surface of the saw blade.If a large amount of aluminum chips and other dirt are found on the saw body of the saw blade after completing a sawing task, in order to ensure that there will be no problems in the next sawing work, we should clean up the dirt of the saw blade in time.At the same time, although the cemented carbide saw blade is made of alloy tool steel, the saw blade itself is still afraid of the humid environment. In this regard, when we save the saw blade, try not to lay it flat on the ground.
  3. Saw blade grinding: As a consumable, sometimes no matter how careful we are, the saw blade can not be prevented from wearing. When the saw blade is really worn, in addition to being eliminated directly, the grinding of the saw blade is often the first choice.Although the profit of saw blade grinding is very low, not all enterprises are so rich and powerful that they dare to eliminate all the worn saw blades.Compared with the wealth of large enterprises, small and micro enterprises actually have a special preference for saw blade grinding. Because through grinding, more than 80% of the cutting performance of the saw blade can be restored. In this way, a worn saw blade will come back to life. This has greatly improved the cost performance of a cemented carbide saw blade and greatly reduced the procurement cost of the enterprise.
  4. Make good use of micro lubrication device: In order to effectively maintain the saw blade and prolong the service life of the saw blade, we can also install a set of micro lubrication device on the aluminum cutting machine.Since the micro lubrication system can spray the cutting fluid to the saw blade rotating at high speed at the amount of 0.05 ml per second, it can not only effectively save the use of aluminum cutting fluid, but also reduce the wear of the saw blade.When the saw blade is working, it will produce a lot of heat. If these heat are gathered together and can not be effectively discharged, it will actually lead to the deformation of the saw blade due to heat, which will affect the sawing effect of the saw blade. Spraying cutting fluid on the working saw blade can effectively improve the heating condition of the saw blade, take away the heat, and then keep the temperature of the saw blade within a reasonable level, so as not to cause the wear of the saw blade due to dry cutting.

The maintenance of cemented carbide saw blade is by no means an easy task, and among these four points, the most important is not one of these four points, but the attitude of the person using the saw blade.

If the users of the saw blade want to reduce the purchase cost of the enterprise and prolong the service life of the saw blade, how can they do well in the above four points?

What is ISO turning inserts naming rules?2021-10-22T08:53:49+00:00

Turning inserts shape symbol:

Turning inserts shape symbol