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Rock Drilling Tools
Cemented Carbide
Cutting Tools
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Rock Drilling Tools
Cemented Carbide
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Non-Standard Cutting Tool Materials

Motor progressive material is widely used in high-speed and high-precision blanking of motor, motor sheet and EI silicon steel sheet.At the same time, it can provide a variety of standard, non-standard materials, preformed parts (rings), etc.

FOR BROCHUREGET A QUOTE
Characteristics and Applications of Materials for Gear Hobbing Tools


➤ Cemented Carbide for Gear Hobbing Tools — XR09U, XR12UF, XR10ST

XR09U
Characteristic:

Ultra‑fine grain alloy, providing excellent edge sharpness and wear resistance.

Application:

Suitable for machining gear products with hardness above HRC60.

XR12UF
Characteristic:

Ultra‑fine grain alloy, providing excellent edge sharpness and wear resistance.

Application:

Suitable for machining gear products with hardness up to HRC55.

XR10ST
Characteristic:

Sub‑micron grain alloy, providing excellent edge sharpness and resistance to chipping.

Application:

Suitable for machining gear products with hardness up to HRC35.


➤ Gear hobbing cutter product series

Hole type hob
  • The number and angle of the customizable grooves. (It is also possible not to slot according to actual requirements)
  • Customizable bevel of tooth end.
  • Customizable chamfers for bores (single 45 degree chamfer, double 45 degree chamfer, sinking chamfer, etc.)
Handle type hob
  • Various handled hobs with or without grooves
  • Customizable two‑end center holes, standard (A, B, partial C) and non‑standard
  • Various shank tapers can be machined
  • Locking groove or keyway can be machined
  • Customizable positive or negative rake angles for hobs.(Negative front corner in right picture)
  • Outer diameter, length, number of teeth and angle can be customized
  • Customizable spiral grooves
  • The figure at right shows a handle‑type hob with BT handle.
  • Handle threads can be machined, M6 or higher meets 6H pass and stop gauge inspection. US threads can also be made.
Milling insert (worm and worm milling cutter)
  • Foil products with multiple grooves.
  • Both side steps can be made according to actual requirements.
Bowl shaper cutter
  • Cutters with bowl shape for front and rear angles
  • Chamfer protection for non‑working face
  • The inner support surface makes a yield groove
Key broach
  • Rough blank profile machining with periodic grooves to minimize accumulated errors.
Taper shank gear shaper cutter
  • One end (edge) with a central hole and one end with a threaded taper shank
  • Machinable sinking centre hole
  • It can machine inner hole avoidance.
  • Tail can be machined, M6 or higher to meet the 6H pass gauge inspection of internal threads
  • Can also process US threads
★ Customized production can be made according to customer drawings.
Characteristics and Applications of Materials for Rotary Cutting Tools


➤ Cemented Carbide for Rotary Cutting Tools — XR12ST, XR15ST

Characteristics

◯ Sub‑micron grain structure with corrosion‑resistant binder phase, providing excellent edge sharpness and wear resistance.

Application

◯ The products are widely used in the hygiene and medical, as well as packaging industries, such as:

Infant Care: Open diapers, pull‑up pants ,

Feminine Care: Sanitary pads, tampons ,

Adult Incontinence Products: Light incontinence products, heavy incontinence products。

Preformed Products
We offer preforming services for customers, including chip grooves, tapered holes, blind holes, through holes, stepped holes, threaded holes, chamfers, and center holes. These preforming processes reduce the need for wire cutting, electrical discharge machining (EDM), and grinding during subsequent processing, thereby shortening the customer's machining time and saving manufacturing costs.

➤ Cutting Tools Category

➤ Mould Category

➤ Preformed Threaded Hole Specification Table

Threaded Hole M3 M4 M5 M6 M8 M10 M12
Maximum Depth/mm 10 16 25 30 30 30 30
☀ For other specifications of threaded holes or high‑precision threaded holes, please consult with technical personnel.
Service and Growth
◯ According to different working conditions, we recommend different materials of cemented carbide for customers;
◯ For products with failure, we analyze systematically with customers and work out solutions together with customers;
◯ Shareate tungsten steel continuously accumulates experience and grows with customers.

Hardness Conversion Table

➤ HV30 and HRA hardness conversion meter

HV30 HRA HV30 HRA HV30 HRA
780 83.3 1250 88.9 1700 92.5
790 83.4 1260 89.1 1710 92.6
800 83.6 1270 89.2 1720 92.6
810 83.7 1280 89.3 1730 92.7
820 83.9 1290 89.4 1740 92.7
830 84 1300 89.5 1750 92.8
840 84.2 1310 89.6 1760 92.8
850 84.3 1320 89.7 1770 92.9
860 84.4 1330 89.8 1780 92.9
870 84.5 1340 89.9 1790 93
880 84.6 1350 90 1800 93
890 84.7 1355 90 1810 93.1
900 84.8 1360 90.1 1820 93.1
910 85 1370 90.2 1830 93.2
920 85.1 1380 90.3 1840 93.2
930 85.2 1390 90.3 1850 93.3
940 85.3 1400 90.4 1860 93.3
950 85.5 1410 90.5 1870 93.4
960 85.6 1420 90.6 1880 93.4
970 85.8 1430 90.7 1885 93.4
980 85.9 1440 90.8 1890 93.5
990 86 1450 90.8 1900 93.5
1000 86.1 1460 90.9 1910 93.6
1010 86.3 1470 91 1920 93.6
1020 86.4 1480 91.1 1930 93.7
1030 86.5 1490 91.2 1940 93.7
1040 86.6 1500 91.2 1950 93.8
1050 86.7 1510 91.3 1960 93.8
1060 86.8 1520 91.4 1970 93.8
1070 87 1530 91.5 1980 93.9
1080 87.2 1540 91.5 1990 93.9
1090 87.3 1550 91.6 2000 94
1100 87.3 1560 91.6 2010 94
1110 87.5 1570 91.7 2020 94
1120 87.6 1580 91.8 2030 94.1
1130 87.7 1590 91.9 2040 94.1
1140 87.8 1600 91.9 2050 94.2
1150 87.9 1610 92 2060 94.2
1160 88 1620 92.1 2070 94.2
1170 88.1 1630 92.1 2080 94.3
1180 88.2 1640 92.2 2090 94.3
1190 88.2 1650 92.2 2100 94.3
1200 88.3 1660 92.3 2110 944.4
1210 88.5 1670 92.3 2130 94.8
1220 88.6 1680 92.4 2200 95.2
1230 88.7 1685 92.4 2250 95.4
1240 88.8 1690 92.5


➤ HRA and HRC hardness conversion meter

HRA HRC
91.8- 92.8 79.5- 81.5
91.5- 92.5 79.0- 81.0
90.5- 91.5 77.0- 79.0
90.2- 91.2 76.5- 79.5
89.8- 90.8 75.6- 77.6
89.0- 90.0 74.0- 76.0
88.5- 89.5 73.0- 75.0
88.0- 89.0 72.0- 74.0
87.5- 88.5 71.0- 73.0
87.0- 88.0 71.0- 72.0
86.0- 87.0 69.0- 71.0
83.0- 84.5 63.0- 66.0
81.5- 83.0 61.0- 63.0
Post-Processing Considerations for Hard Metals

➤ The notes for transportation:

  • When falling to the hard ground from high position, the cemented carbide products could be easily broken. Please check the products whether any damages happen when opening the package.
  • Be careful not to get injured to hands or feet when carrying and using the products since the density of cemented carbide in two times higher than steel parts.
  • The thin cement carbide products(pipe or strip shape or with sharp corners) will easily lose the corners or sides. So do not put excessive load when fastening,dismounting and transport before machining.

➤ Notes for machining:

2.1 Machining and grinding

  • The cemented carbide could be easily cracking or chipping under the condition of impact effect and excessive machining load.Before starting machining please check whether the parts are fastened to the workbench.
  • Don’t strike the cemented carbide with iron hammer due to its non-good impact resistance.
  • The general cemented carbide is not easily fixed by magnet. When using the magnet for fastening, please double check whether the parts are loose or not.
  • The surfaces machined are very smooth and the corners are very sharp. Be careful for your safety when carrying and using.

2.2 Electro machining

  • When the cemented carbide is in the process of electro machining, the machining surfaces are easily cracking and chipping corners, the work piece programs need to be adjusted according to the geometric parameter of the parts and the degree of the carbide materials.
  • Wire- electrode cutting sometimes causes the phenomenon of cracking on the machining surfaces. It is necessary to check the machining surfaces to confirm that there is no defect before staring next procedure.

2.3 Welding

  • When the cemented carbide is in the process of welding procedure, the cemented carbide and welding gap easily emerge the cracks. It is necessary to proceed next procedure after checking and confirming that there is no defect.
  • Be strict with the welding technology of cemented carbide and make fore welding pretreatment and post welding heat preservation which will protect the cemented carbide from fast heating and cooling to cause cracking of cemented carbide.

2.4 Corrosion

  • The cemented caride will be easy to cause corrosion(rust) in the acidic environment because it contains iron series of metal ( Cobalt and Nickel). Therefore, the solution used in the process of machining should be neutral or weakly alkaline substance.