JB/T 7966.4-1999 This standard is a revision of JB/T 7966.4-95 "Straight Shank Tapered Die Milling Cutters". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. The original standard adopts the international standard ISO 3940-1977 "Straight Shank Tapered Die Milling Cutters" Type I. This standard is part of the JB/T 7966 "Mold Milling Cutter" series of standards, which includes the following 10 parts: JB/T 7966.1: Straight shank cylindrical ball nose end mill JB/T 7966.2: Flattened straight shank cylindrical ball nose end mill JB/T 7966.3: Morse taper shank cylindrical ball nose end mill JB/T 7966.4: Straight shank conical end mill JB/T 7966.5: Flattened straight shank conical end mill JB/T 7966.6: Straight shank conical ball nose end mill JB/T 7966.7: Flattened straight shank conical ball nose end mill JB/T 7966.8: Morse taper shank conical end mill JB/T 7966.9: Morse taper shank conical ball nose end mill JB/T 7966.10: Technical conditions This standard specifies the types and dimensions of straight shank tapered die milling cutters. This standard applies to straight shank tapered die milling cutters with a diameter of 6~12mm. This standard was first issued in 1986 as GB 6336.4-86 and was adjusted to JB/T 7966.4-95 in April 1996. JB/T 7966.4-1999 Die milling cutters Part 4: Straight shank tapered end mills JB/T7966.4-1999 standard download decompression password: www.bzxz.net

1CS25.100.20
Machinery Industry Standard of the People's Republic of China
JB/T7966.1~7966.10-1999
Mold Milling Cutter
Published on 1999-05-20
National Bureau of Machinery Industry
Implementation on 2000-01-01
JB/T7966.4-1999
This standard is a revision of JB/T7966.4-95 (original GB6336.4-86) "Mold Milling Cutter Straight Shank Taper End Mill". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. The original standard adopts the international standard ISO3940-1977 "Straight Shank Taper Concave Milling Cutter" Type I. This standard is part of the JB/T7966 "Mold Milling Cutter" series of standards, which includes the following 10 parts: JB/T7966.1—1999
JB/T 7966.2-1999
JB/T 7966.3—1999
JB/T 7966.4—1999
JB/T 7966.5--1999
JB/T7966.6—1999
JB/T 7966.71999
JB/T7966.8—1999
JB/T 7966.9-—1999
JB/T7966.10—1999
Mold milling cutters Part 1: Straight shank cylindrical ball end mills Mold milling cutterswwW.bzxz.Net
Mold milling cutters
Mold milling cutters
Mold milling cutters
Part 2: Flattened straight shank cylindrical ball end mills Part 3: Morse taper shank cylindrical ball end mills Part 4: Straight shank conical end mills
Part 5: Front Flat straight shank tapered end mills, mold milling cutters
Part 6: Straight shank tapered ball end mills, mold milling cutters
Mold milling cutters
Part 7: Front flat straight shank tapered ball end mills Part 8: Morse taper shank tapered end mills, mold milling cutters
Part 9: Morse taper shank tapered ball end mills, mold milling cutters Part 10: Technical conditions
This standard replaces JB/T7966.4-95 from the date of implementation. This standard is proposed and managed by the National Tool Standardization Technical Committee. The responsible drafting units of this standard: Chengdu Tool Research Institute, Changshu Measuring Tool Blade Factory. 10
Mechanical Industry Standards of the People's Republic of China
Mold milling cutters
Part 4: Straight shank tapered end mills
This standard specifies the types and dimensions of straight shank tapered mold milling cutters. This standard applies to straight shank circular dimensional mold milling cutters with a diameter of 6~12mm. 2 Referenced standards
JB/T7966.4—1999
Replaces JB/T7966.495
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should discuss the possibility of using the latest version of the following standards. GB/T 6131.1—1996
JB/T7966.10—1999
3 Types and dimensions
Milling cutter straight shank Part 1: Types and dimensions of ordinary straight shanks Mold milling cutters Part 10: Technical conditions
Types and dimensions are in accordance with Figure 1 and Table 1.
Approved by the State Bureau of Machinery Industry on May 20, 1999, and implemented on January 1, 2000
Basic dimension
Makoto size
Gongto scale
Moto scale
Basic size
Joet-8
Basic size
Basic dimension
Basic dimension
Basic scale
Basic scale ten
Limited building 1
Wanben size
Basic angle
Basic size
JB/T 7966.41999
8—83
JB/T7966.4-1999
Basic size
Connection size
Basic size
Basic size
Basic size
Basic size
Basic size
Basic size
Basic angle
Basic angle
Marking example
JB/T7966.4—1999
Blade head diameter d-12mm, semi-cone angle α /2=3*The marking of the straight shank conical end mill (short type) is: Conical milling cutter 12-3° short JB/T7966.4—1999 The small head diameter of the blade is d-12mm, and the half cone angle α/2=3°. The marking of the straight shank conical end mill (standard type) is: Conical milling cutter 12-3° JB/T7966.4—1999 The small head diameter of the blade is d=12mm, and the half cone angle α/2=3. The marking of the straight shank conical end mill (long type) is: Conical milling cutter 12-3° long JB/T7966.4—19995 Technical conditions
Technical conditions are in accordance with JB/T7966.10.
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