GB/T 9062-1988 Carbide staggered tooth three-edge milling cutter GB/T9062-1988 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Cemented Carbide Alternate Teeth Side and Face Milling Cutters
Side and face milling cutters with double alternate helical teeth with carbide tips This standard applies to alternate tooth face milling cutters with welded cemented carbide inserts. 1 Type and size
Type and size are specified in the following figure and Table 1.
Ａ～Ａ增大
1988-03-17 Approved by the State Machinery Industry Commission BB 摩登
UDC 621.914.2
GB 9062—88
198901-01 Implementation
Limit Deviation
Limit Deviation
GB 9062B8
Limit Deviation
5°~10
Hard Alloy
Catalogue Model
iD218B
Limit Deflection
Limit Deviation
GB 9062--88
Continued Table 1
Limit deviation
103°~5°
Carbide
Blade model
Limit deviation
Limit offset
GB 90628B
Continued Table 1
Limit deviation
[Number of teeth
Note: (The size and offset of the keyway shall comply with GB6132-85 "Interchangeable dimensions of milling cutters and milling cutter rods". ②The shape and angle of the cutting edge may be appropriately changed according to the material being processed and the cutting conditions. ③) The model of the hard alloy blade shall comply with GB5245-85 "Carbide welding blade". 8
13~5°
Carbide
Foil Model
1.2 Marking Example:
Outer diameter D=100mm, thickness L16mm, carbide staggered tooth three-edge milling cutter with use classification code P20 is: milling cutter 100×16-P20GB9062—87
2 Technical Requirements
2.1 There shall be no cracks on the milling cutter blade, no chipping on the cutting edge, and no defects such as scratches and rust on the milling cutter surface that affect the performance.
2.2 There shall be no sand holes and incomplete penetration at the weld of the milling cutter. The surface roughness shall comply with GB1031--83 "Surface roughness parameters and their values" and its value shall not be greater than the following provisions: 2.3
Front and rear surface..
Inner hole surface
Gap surface on both sides of the cutter tooth and two supporting end surfaces·
2.4The shape and position tolerances shall comply with the provisions of Table 2. 206
*..Rz3.2μm
..Ra1.25μm
Ra1.25μm
Radial circular runout of the circumferential blade to the inner hole axis
End edge to the inner hole axis
Grass runout
Outer diameter taper
Note: For the detection method of circular runout, see Appendix A. 2.5 Materials and hardness
GB 9062-88bzxZ.net
D≤80
D 80 ~ 125
2.5.1 The milling blades shall be selected in accordance with GB2075-87 "Classification and grouping code of hard alloys for cutting mills". 2.5.24
The milling cutter body shall be made of 40Cr or alloy steel with equivalent performance or above, and its hardness shall not be less than HRC30. 3 Performance test
The milling cutter blade shall be made of P20~P30 or M20~M30 hard alloy, and the test material shall be 45 steel, with a hardness of HB170~200: 3.1
The milling blade shall be made of K20~K30 hard alloy, and the test material shall be gray cast iron, with a hardness of HB180~220. No coolant shall be used during the test.
The test cutting specification shall be in accordance with Table 3.
8～10
8～10
12 ~18
12 18
20 ～25
Milling depth
Cutting speed
80 ～100
Feed ratio
0.10 -0.12
Total length of milling
Basic size
8～10
12 ～18
20～28
12～18
12 ～ 18
14 ~ 18
20 ~28
Note: ①Thickness of milling cutter teeth.
②、P、M-
GB9062--88
Continued Table 3
Milling depth
--Carbide application group code.
Milling speed
80~100
3.4After the test, there shall be no chipping and obvious blunting on the cutting edge of the milling cutter. Marking and packaging
Milling feed basis
mm/tooth
4.1 Marking
4.1.1The milling cutter shall be marked with: manufacturer's trademark, outer diameter and thickness, blade material (application code or brand). K
Total length of milling
4.1.2 The packaging box of the milling cutter shall be marked with: product name, national standard number, manufacturer name and trademark, outer diameter and thickness of the milling cutter, blade material (use code or brand), number of pieces, and year and month of manufacture. 4.1.3 The packaging box of the milling cutter shall be distinguished by the color marking corresponding to the classification code in accordance with the provisions of GB207587 "Classification and grouping code of hard alloy for cutting processing".
4.2 Packaging: The milling cutter shall be treated with rust prevention before packaging. Packaged milling cutters shall be protected from damage. 208
Tapered mandrel
Additional instructions:
GB9062-88
Appendix A
Detection method for circular runout of hard alloy three-edge milling cutters (reference part)
Core with boss
This standard is proposed by the National Technical Committee for Tool Standardization. This standard is under the jurisdiction of Chengdu Tool Research Institute. This standard was drafted by Shanghai Tool Factory.
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