JB/T 7966.9-1999 This standard is a revision of JB/T 7966.9-95 "Mold milling cutter Morse taper shank conical 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 non-equivalently adopted the international standards ISO 3940-1977 "Straight shank conical die milling cutter, ISO 1641/2-1978 "End mills and keyway milling cutters Part 2: Morse taper shank milling cutters". 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 Morse taper shank conical ball end mills. This standard applies to Morse taper shank conical ball end mills with a diameter of 16~40mm. This standard was first issued in 1986 as GB 6336.9-86 and was adjusted to JB/T 7966.9-95 in April 1996. JB/T 7966.9-1999 Die milling cutters Part 9: Morse taper shank conical ball end mills JB/T7966.9-1999 standard download decompression password: www.bzxz.net

ICS25.100.20
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/T 7966.9—1999
This standard is a revision of JB/T7966.995 (formerly GB6336.9-—86) "Mold milling cutter with Morse shank tapered ball nose end mill". During the revision, only editorial modifications were made in accordance with relevant regulations, and the technical content remained unchanged. The original standard is not equivalent to the international standards ISO3940-1977 "Straight shank tapered die milling cutter" and ISO1641/21978 "End mills and keyway milling cutters-Part 2: Die taper shank milling cutters". This standard is a part of the JB/T7966 "Mold milling cutter" series of standards. The series of standards includes the following 10 parts: JB/T7966.1—1999wwW.bzxz.Net
JB/T 7966.2—1999
JB/T 7966.3—1999
JB/T 7966.4—1999
JB/T7966.5—1999
JB/T7966.6—1999
JB/T7966.7-1999
JB/T 7966.8—1999
JB/T 7966.9—1999
JB/T7966.10—1999
Mold milling cutters Part 1: Straight shank cylindrical ball end mills Mold milling cutters. Part 2: Flattened straight shank cylindrical ball end mills Mold milling cutters
Mold milling cutters
Mold mirror cutters
Mold milling cutters
Mold milling cutters
Mold milling cutters
Mold milling cutters
Mold milling force||tt ||Part 3: Cylindrical ball end mills with Morse taper shank Part 4: Circular end mills with straight shank
Part 5: Flattened straight shank conical end mills Part 6: Straight shank conical ball end mills Part 7: Flattened straight shank conical ball end mills Part 8: Morse taper shank conical end mills Part 9: Morse taper shank conical ball end mills Part 10: Technical conditions
This standard replaces JB/T7966.9-95 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Tool Standardization. The responsible drafting units of this standard are: Chengdu Tool Research Institute and Changshu Measuring Tool and Cutting Tool Factory. 34
Mechanical Industry Standard of the People's Republic of China
Mold milling cutter
Part 9: Morse taper shank conical ball nose end milling cutter range
This standard specifies the type and size of Morse taper shank conical ball nose mold milling cutter. This standard is applicable to Morse taper shank conical ball nose mold milling cutter with a diameter of 16-40mm. Cited standards
JB/T 7966.91999
Replaces JB/T7966.9-95
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 are subject to revision, and parties using this standard should explore the possibility of using the latest version of the following standards. GB/T1443—1996
GB/T41331984
JB/T7966.10—1999
Types and dimensions
Machine tools and tools Self-clamping tapers for shanks
Forced drive types and dimensions of Morse tapers for die milling cutters Part 10: Technical conditions
Types and dimensions are as shown in Figure 1 and Table 1.
Morse handle
Approved by the State Machinery Industry Bureau on May 20, 1999. Type I
Implemented on January 1, 2000
JB/T7966.9—1999
11. The dimensions and deviations of the Fischer taper handle shall comply with GB/T14432. The dimensions and deviations of the Type II Morse taper handle shall comply with GB/T4133. 3. Washing knives are allowed to be made without necks
20~35°
A-AB-B
Marking example
JB/T 7966.91999
The Morse taper shank conical ball nose end mill with ball nose diameter d-40mm, total length L-265mm and semi-cone angle α/2=3° is marked as conical ball nose milling cutter 40×265-3°
JB/T7966.9—1999
Technical conditions
Technical conditions shall be in accordance with JB/T7966.10.
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