BS ISO 14104:2014:2015 Edition
$142.49
Gears. Surface temper etch inspection after grinding, chemical method
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 28 |
This International Standard specifies procedures and requirements for the detection and classification of localized overheating on ground surfaces by chemical etch methods.
The process described in this International Standard is typically used on ground surfaces; however, it is also useful for the detection of surface anomalies that result from post-heat treatment machining such as hard turning, milling, and edge breaking (deburring) processes. Surface metallurgical anomalies caused by carburization or decarburization are also readily detectable with this process.
Some methods which have been used in the past are no longer recommended. Specifications are intended to be changed to use the methods in this International Standard. These etching methods are more sensitive to changes in surface hardness than most hardness testing methods.
This International Standard applies to steel parts such as gears, shafts, splines, and bearings. It is not applicable to nitrided parts and stainless steels. Alternative methods should be considered.
This process, although at times called “nital etch”, is not intended to be confused with other processes also known as “ nital etch”.
The surface temper etch procedure is to be performed after grinding and before additional finishing operations such as superfinishing, shot peening, and honing.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 9 | Section sec_1 Section sec_2 Section sec_2.1 Section sec_2.2 Section sec_2.3 Section sec_2.4 1 Scope 2 Equipment |
| 10 | Section sec_2.5 Figure fig_1 Section sec_3 Section sec_3.1 Section sec_3.2 Section sec_3.3 Section sec_3.4 Section sec_3.5 Section sec_3.6 3 Reagents |
| 11 | Section sec_3.7 Section sec_4 Section sec_4.1 Table tab_1 4 Procedure 4.1 General |
| 12 | Figure fig_2 Section sec_4.2 4.2 Cleaning |
| 13 | Table tab_2 |
| 14 | Table tab_3 Section sec_4.3 4.3 Etching |
| 15 | Table tab_4 |
| 16 | Section sec_5 Section sec_5.1 Section sec_5.2 5 Inspection criteria 5.1 Visual appearance and classification 5.2 Surface hardness effects |
| 17 | Section sec_6 Section sec_7 Section sec_8 Section sec_9 6 Temper etch discoloration removal 7 Rework of surface-tempered parts 8 Operator qualification 9 Maintenance and control |
| 18 | Figure fig_3 |
| 19 | Figure fig_4 Table tab_a Figure fig_5 |
| 20 | Figure fig_6 Table tab_b Figure fig_7 Figure fig_8 |
| 21 | Table tab_c Figure fig_9 Figure fig_10 |
| 22 | Figure fig_11 Figure fig_12 |
| 23 | Figure fig_13 Section sec_10 10 Safety and environmental precautions |
| 24 | Section sec_11 Section sec_11.1 Section sec_11.2 11 Specifications and documentation 11.1 Specifications 11.2 Documentation |
| 25 | Reference ref_1 Reference ref_2 Reference ref_3 Bibliography |
