JB/T 9991-1999 This standard is a revision of ZB J41 007-88 "Electroplated Diamond Reamer". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard specifies the basic requirements for the type and size, technical requirements, performance tests, and marking and packaging of electroplated diamond reamers. This standard is applicable to electroplated diamond reamers for precision through-hole machining of cast iron with accuracy grades of 1 to 4. This standard was first issued on . JB/T 9991-1999 Electroplated Diamond Reamer JB/T9991-1999 Standard download decompression password: www.bzxz.net

FC3 25.100,3
Machinery Industry Standard of the People's Republic of China
JB/T9991—1999
Electroplated Diamond Reamer
1999-05-20 Issued
State Bureau of Machinery Industry
2000-01-01 Implementation
JB/T9991-1999
This standard is a revision of ZBJ41007—88 Electroplated Diamond Knife. During the revision, only the editorial rectification was carried out according to relevant regulations, and the technical content was not changed.
This standard replaces ZBJ410078% from the date of implementation. This standard was issued and submitted by the National Technical Committee for Standardization. The responsible drafting units of this standard are: Guangzhou Machine Tool Research Institute and Chengdu Tool Research Institute. Main drafters of technical standard: Ye Yinsen, Fan Qiu, Fan Gu
Mechanical Industry Standard of the People's Republic of China
Electroplated Diamond Reamer
IAT9991—J999
34107-88
This standard specifies the type and size, technical requirements, performance test, marking and packaging of electroplated diamond reamers. This standard is applicable to electroplated diamond reamers for iron turning through hole processing of grade 1 and grade 4. 2 Referenced Standards
The provisions contained in the above standards constitute the provisions of this standard through reference in this standard. When the standard is published, the versions shown are valid. All standards have been revised. When using this standard, the parties should use the latest version of the following standards: GR/T 4092-1996 Abrasive products Diamond or vertical plastic grinding 3 Types and dimensions || tt || 3.1 Types and dimensions of electroplated gold-plated stone tools! 3.1.2 Adhesion grades are divided into: Grade 2 - Semi-reamer Grade 3 - Special reamer - Super reamer Approved by China Machinery Industry Bureau 144-5-20 2000-01-01 Implementation J89991—1999 JG-A Type TG-B Type JK-B Type > 14-18 ≤ 50 | 999
means "(End)bzxZ.net
, that is, -n3mm to 0.07mm
Note: JK - A[K -B Adjustable up to 1mm, 3.2 Marking example
Formulated or, = 1imm, A-type material reamer, the mark of the T-hole length of 100mm electric ammonium gold stone bell is: Honpu diamond 6 wheel-A1-1-0 reported 991-1999 technical requirements
4.1 Material heat treatment
Grinding a man-made diamond J,
IGA (month) body is 40CT, heat treatment temperature 38~42HRC: IK-.A sleeve is CT: Fanchu now 35~40HRCJK---D knife will be 1IT300,
4. 2 Accuracy requirements
The mesh thickness of the front and rear guide nets is 0.005mm, the mesh inspection accuracy is (.05mm/100mm: the front guide net thickness is 0.63m, the rear outer diameter is R0.16, and the axis accuracy of the tool handle and the front and rear guide parts is 0.01. JK
4.3 The quality inspection degree of the layer bonding strength, diamond bonding degree, diamond fusion particle distribution uniformity and other quality inspection degrees (R shall comply with the provisions of 6109.2) 4.4: Before returning to the factory, the product must have an inspection certificate, and the actual size of the inspected piece must be indicated on the certificate: 5 Back cutting test and precision requirements
5.1. Requirements for test pieces
The test piece material is Casting IT300.
SR/T9991—1999
The depth of the test piece hole is determined by the maximum length of the processed hole of various specifications, and the number of test pieces is two.
The diameter of the test piece hole is x25μm, the diameter is (0.005-0.01)mm/100mm, and the roughness is removed, cleaned and dried. The processing remainder is in accordance with Table 2.
Roughness J1. Residue
Specific use is in accordance with Table 3.
Cutting depth m
Half-speed, door addition allowance
0.007-0.015
Feed: mny
0.10-4F 30
The hole size requirements of the marked test piece shall be as per Table 4
Comparison tool name
Precision cutting tool
Precision cutting tool
Information
Marking and packaging
6.1 Marking
≤1.1 Marking on the cutting tool
Precision grade
Precision plus 1%
0.43250.005
Coolant
0% kerosene + 10% flow cutting oil
Precision plus 1%
3.0025 or less
The hole accuracy of the marked test piece shall be as follows:
m
u) Trademark of the manufacturer or seller:
b) Basic diameter, type and precision grade of the cutting tool. 6. 1.2 The packaging box should be marked with: a) manufacturer or sales business name, address and trademark; b) comparative mark:
) number of pieces;
d) year of manufacture,
2 packaging
0.003-0.004
0.002-0.003
0.001 or less
light force should be rust-proofed before packaging, the packaging must be car-proof and can prevent damage during transportation, reading process
(0.003-0.004)/100
(D.02-0.003 M10)
[9.0K110.002)[)
0.001 Door 00
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