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Flow Drill Description:
The hot-melt drill is made of tungsten carbide with high hardness, The forming part of the drill bit consists of a polygon with four small planes, When the bit rotates at high speed, The friction between these four small planes and the workpiece material produces huge heat, which makes the material shape. The drill bit is designed to have an almost flat cone, transition to a cone, and then a cylinder. The conical and cylindrical parts of the drill bit are actually made up of polygons as mentioned above. The cylindrical part of the drill bit determines the diameter of the hole.
Demand Occasion:
Suitable for the following occasions:
★ Need to lengthen thread
★ Welding partner, multilayer heat exchanger
★ Bearing support
★ Screw connection of stainless steel building or metal furniture
Processing Advantages:
1. No chip, thread can bear tension and torsion
2. No chip processing, no need to remove waste.
3. The forming precision is high on the boss.
4. Suitable for a variety of tapping machine.
5. High speed, long life, improve production.
6. Suitable for a variety of hot-melt drilling materials
Product Specifications:
Specification of hot melt drill:
The diameter of standard hot melt drill bit ranges from 2.0 mm to 25.4 mm.
The specifications and sizes of hot-melt drills are generally distinguished according to the thread specifications, and the common specifications include:
Metric coarse / fine teeth (M): M3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20;
American taper pipe thread: (NPT): 1/8'', 1/4'', 3/8'', 1/2'', 3/4''.
Inch straight pipe thread: (BSP): G1/8, G1/4, G3/8, G1/2, G3/4;
American coarse / fine teeth: (UNC/UNF): No.4, No.5, No.6, No.8, No.10, No.12, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 3/4;
Special specification of hot melt drill bit can be customized according to the needs of users.
Product Category:
1. According to the surface classification after processing: "standard hot melt drill (round mouth hot melt drill)" and "flat mouth hot melt drill (scraping hot melt drill)"
(1) Standard hot melt drill (round mouth hot melt drill)
The hot melt drill penetrates the workpiece and forms a convex ring on the surface of the workpiece at the same time. The boss is suitable for thread seal or nut washer.
(2) Flat mouth hot melt drill (scraping hot melt drill).
The middle step part of the hot melt drill bit is ground with a milling cutter edge. When the hot melt drill penetrates the workpiece to form a bushing, the convex ring on the workpiece surface is cut off (milled and chamfered) to make the workpiece surface smooth.
2. According to the thickness of workpiece, fdrill hot melt drill is divided into short drill and long drill
Short drill: used for common thin-walled parts. It is suitable for penetrating workpiece with thickness of 0.8mm-3mm. The cylinder part of the bit is short, and the hole formed by extrusion is conical, which can enhance the tapping strength.
Long drill: it is used for thick workpieces or straight holes. It is suitable for penetrating workpiece with thickness greater than 3mm-12mm. The cylinder part of the drill bit is longer, and the hole formed by extrusion is longer.
Flow Drill Process:
The flow drill comes into contact with the material using relatively high axial pressure and rational speed. The generated heat makes the material soft and mealleable enough to be formed or perforated. As the flow drills push into the material, some of the displaced material forms a collar around the upper surface of the workpiece. The rest of the material froms a bushing in the lower surface of the workpiece. All this happens in a matter of seconds. The resulting collar and bushing can be up to 3 times the original material thickness. The diamter of the bush is accurately determined by the cylindrical part of the flow drill tool. The process does not disturb the material's internal structure. As a result, the formed bush is remarkably strong and can be used for bearing sleeves or, when threaded in a separate process, can provide high torque threaded surfaces with very high pull out strength specifications.
Applications:
The flow drill process can be used in any application where the material thickness does not provide support for a threaded surface or a sleeve bearing application. When you need a welded or revited nut or a special insert,---think flow drill. You will improve quality and save a lot of money.
Flow drill tools can be used on standard drilling machines, NC or CNC systems with motor capacities from 1.5 to 3.5 kw. Revolution speeds(RPM) required range from 1000 to 3500 RPM.
Forming taps however provide multiple advantages. For ductile work materials, thread forming can provide better size control and stronger threads while improving tool life and productivity.
Unlike thread cutting, no material is removed during thread forming. Rather, the process displaces the material to generate the thread form.
Since the metal's structure is cold worked along the thread profile, the threads produced are generally stronger and have a smooth, burnished surface finish. Cold forming taps can be operated at higher speeds and feeds than conventional taps.
Cold forming technology has been used to produce threads for more than 100 years. Tap designs have changed considerably in that time. This combined with the newest coatings guarantees a very long tool life in most applications.
Forming taps must be applied in materials that cold form well. This includes steels, stainless steels, light metals, light metal alloys and other materials with tensile strength to 1200N/mm2. Generally, materials that produce a continuous chip when drilling are good candidates for thread forming.
In combination with Formdrill, thread forming will boost quality and throughput.
Order Process:
Contact us to confirm
Category, quantity, delivery address, contact information, to find the price.
Flow Drill Description:
The hot-melt drill is made of tungsten carbide with high hardness, The forming part of the drill bit consists of a polygon with four small planes, When the bit rotates at high speed, The friction between these four small planes and the workpiece material produces huge heat, which makes the material shape. The drill bit is designed to have an almost flat cone, transition to a cone, and then a cylinder. The conical and cylindrical parts of the drill bit are actually made up of polygons as mentioned above. The cylindrical part of the drill bit determines the diameter of the hole.
Demand Occasion:
Suitable for the following occasions:
★ Need to lengthen thread
★ Welding partner, multilayer heat exchanger
★ Bearing support
★ Screw connection of stainless steel building or metal furniture
Processing Advantages:
1. No chip, thread can bear tension and torsion
2. No chip processing, no need to remove waste.
3. The forming precision is high on the boss.
4. Suitable for a variety of tapping machine.
5. High speed, long life, improve production.
6. Suitable for a variety of hot-melt drilling materials
Product Specifications:
Specification of hot melt drill:
The diameter of standard hot melt drill bit ranges from 2.0 mm to 25.4 mm.
The specifications and sizes of hot-melt drills are generally distinguished according to the thread specifications, and the common specifications include:
Metric coarse / fine teeth (M): M3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20;
American taper pipe thread: (NPT): 1/8'', 1/4'', 3/8'', 1/2'', 3/4''.
Inch straight pipe thread: (BSP): G1/8, G1/4, G3/8, G1/2, G3/4;
American coarse / fine teeth: (UNC/UNF): No.4, No.5, No.6, No.8, No.10, No.12, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 3/4;
Special specification of hot melt drill bit can be customized according to the needs of users.
Product Category:
1. According to the surface classification after processing: "standard hot melt drill (round mouth hot melt drill)" and "flat mouth hot melt drill (scraping hot melt drill)"
(1) Standard hot melt drill (round mouth hot melt drill)
The hot melt drill penetrates the workpiece and forms a convex ring on the surface of the workpiece at the same time. The boss is suitable for thread seal or nut washer.
(2) Flat mouth hot melt drill (scraping hot melt drill).
The middle step part of the hot melt drill bit is ground with a milling cutter edge. When the hot melt drill penetrates the workpiece to form a bushing, the convex ring on the workpiece surface is cut off (milled and chamfered) to make the workpiece surface smooth.
2. According to the thickness of workpiece, fdrill hot melt drill is divided into short drill and long drill
Short drill: used for common thin-walled parts. It is suitable for penetrating workpiece with thickness of 0.8mm-3mm. The cylinder part of the bit is short, and the hole formed by extrusion is conical, which can enhance the tapping strength.
Long drill: it is used for thick workpieces or straight holes. It is suitable for penetrating workpiece with thickness greater than 3mm-12mm. The cylinder part of the drill bit is longer, and the hole formed by extrusion is longer.
Flow Drill Process:
The flow drill comes into contact with the material using relatively high axial pressure and rational speed. The generated heat makes the material soft and mealleable enough to be formed or perforated. As the flow drills push into the material, some of the displaced material forms a collar around the upper surface of the workpiece. The rest of the material froms a bushing in the lower surface of the workpiece. All this happens in a matter of seconds. The resulting collar and bushing can be up to 3 times the original material thickness. The diamter of the bush is accurately determined by the cylindrical part of the flow drill tool. The process does not disturb the material's internal structure. As a result, the formed bush is remarkably strong and can be used for bearing sleeves or, when threaded in a separate process, can provide high torque threaded surfaces with very high pull out strength specifications.
Applications:
The flow drill process can be used in any application where the material thickness does not provide support for a threaded surface or a sleeve bearing application. When you need a welded or revited nut or a special insert,---think flow drill. You will improve quality and save a lot of money.
Flow drill tools can be used on standard drilling machines, NC or CNC systems with motor capacities from 1.5 to 3.5 kw. Revolution speeds(RPM) required range from 1000 to 3500 RPM.
Forming taps however provide multiple advantages. For ductile work materials, thread forming can provide better size control and stronger threads while improving tool life and productivity.
Unlike thread cutting, no material is removed during thread forming. Rather, the process displaces the material to generate the thread form.
Since the metal's structure is cold worked along the thread profile, the threads produced are generally stronger and have a smooth, burnished surface finish. Cold forming taps can be operated at higher speeds and feeds than conventional taps.
Cold forming technology has been used to produce threads for more than 100 years. Tap designs have changed considerably in that time. This combined with the newest coatings guarantees a very long tool life in most applications.
Forming taps must be applied in materials that cold form well. This includes steels, stainless steels, light metals, light metal alloys and other materials with tensile strength to 1200N/mm2. Generally, materials that produce a continuous chip when drilling are good candidates for thread forming.
In combination with Formdrill, thread forming will boost quality and throughput.
Order Process:
Contact us to confirm
Category, quantity, delivery address, contact information, to find the price.
