JB/T 7966.6-1999 This standard is a revision of JB/T 7966.6-95 "Mold milling cutter straight shank tapered ball nose end mill". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. The original standard is not equivalent to the international standard ISO 3940-1977 "Straight shank tapered die milling cutter" 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 ball end mills. This standard applies to straight shank tapered ball end mills with a diameter of 6 to 12 mm. This standard was first published in 1986 as GB 6336.6-86 and was adjusted to JB/T 7966.6-95 in April 1996. JB/T 7966.6-1999 Die milling cutters Part 6: Straight shank tapered ball end mills JB/T7966.6-1999 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 May 20, 1999
National Bureau of Machinery Industry
Implementation on January 1, 2000
JB/T 7966.61999
This standard is a revision of JB/T7966.6--95 (original GB6336.6--86) "Mold milling cutter straight shank tapered ball head end mill". During the revision, only editorial changes were made according to relevant regulations, and the technical content was not changed. The original standard is not equivalent to the international standard ISO39401977 "Straight shank tapered die milling cutter". This standard is part of the JB/T7966 "Mold milling cutter" series of standards, which includes the following 10 parts: JB/T 7966.1—1999
JB/T 7966.2-1999
JB/T 7966.31999
JB/T 7966.41999
JB/T7966.5—1999
JB/T 7966.61999
JB/T 7966.7—1999
JB/T 7966.81999
JB/T 7966.9—1999
JB/T7966.101999
Mold milling cutters Part 1: Cylindrical ball end mills with straight shanks Part 2: Flattened cylindrical ball end mills with straight shanks Mold milling cutters
Mold milling cutters
Part 3: Cylindrical ball end mills with Morse shanks Part 4: Conical end mills with straight shanks
Mold milling cutters
Mold milling cutters Part 5 : Front flat straight shank circular shaped end mill mold milling cutter
Part 6: Straight shank conical ball end mill mold milling cutter
Part 7: Flat straight shank conical ball end mill mold milling cutter Part 8: Morse taper shank conical end mill mold milling cutter Part 9: Morse taper shank conical ball end mill mold milling cutter Part 10: Technical conditions
This standard replaces JB/T7966.695 from the date of implementation. This standard is proposed and managed by the Technical Committee for Standardization of All-round Tools. The responsible units for the chapter of this standard: Chengdu Tool Research Institute, Changshu Measuring Tool and Cutting Tool Factory. 20
Mechanical Industry Standards of the People's Republic of China
Mold milling cutter
Part 6: Straight shank conical ball end mill This standard specifies the type and size of straight shank conical ball end mill mold cutters. This standard applies to straight shank round male ball head mold milling cutters with a diameter of 6-12mm. 2 Referenced standards
JB/T 7966.6-1999
Replaces JB/T7966.6-95
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 explore the possibility of using the latest version of the following standards. GB/T6131.1-1996
JB/T 7966.10-1999
Types and dimensions
Milling cutter straight shank Part 1: Types and dimensions of ordinary straight shank Mold milling cutters
Types and dimensions are as shown in Figure 1 and Table 1.
Approved by the State Bureau of Machinery Industry on May 20, 1999 Part 10: Technical conditions
Implemented on January 1, 2000
JB/T7966.61999
Equipment size
Basic size
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Standard 16
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Basic In this ruler
Limited to send 1
Basic ruler
Basic ruler at
Following ruler angle
Steam ruler size
JB/T7966.61999
Basic size
Curtain ruler size
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Lotus size
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Basic sizebzxZ.net
Marking example
JB/T7966.6-1999
The marking of the straight shank conical ball head end mill (short type) with a ball head diameter of 12mm and a semi-cone angle α/2=3° is: Conical ball head milling cutter 12-3° short JB/T7966.6—1999 ball head diameter 12mm, semi-cone angle The marking of the straight shank conical ball nose end mill (standard type) with α/2-3° is: Conical ball nose milling cutter 12-3° JB/T7966.6—1999. The ball head diameter d=12mm and the straight shank circular dimensional ball nose end mill (long type) with half cone angle α/2=3° are: Conical ball nose milling cutter 12-3° long JB/T7966.6—19995 Technical conditions
Technical conditions are in accordance with JB/T7966.10.
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