| 1. | INTRODUCTION |
| 2. | APPLICABILITY |
| 3. | REFERENCED AND ASSOCIATED DOCUMENTS |
| 4. | TEST PROCEDURE |
| 5. | TEST EQUIPMENT |
| 5.1 | GENERAL |
| 5.2 | CERTIFICATION |
| 5.3 | IN SERVICE CHECKS |
| 6. | PERSONNEL QUALIFICATION/CLASSIFICATION |
| 7. | RECORDS |
| 8. | EVALUATION OF PROCEDURES |
| 1 | INTRODUCTON |
| 1.1 | This instruction defines controls which shall be applied by suppliers approved by Raytheon Corporate Jets, Inc., to ensure the efficiency and reliability of hardness testing of metallic materials. | ||||||||||||||||||||||||||||||||||||||
| 2 | APPLICABILITY |
| 2.1 | All hardness test facilities undertaking hardness testing of metallic materials in fulfilment of orders placed by Raytheon Corporate Jets, Inc., (referred to as RAQSC within this document). | ||||||||||||||||||||||||||||||||||||||
| NOTE: i) | Certification of the integrity of parts and assemblies by means of hardness testing shall only be undertaken by suppliers specifically qualified by RAQSC, to undertake this process. |
| ii) | BAEP 9088 regarding the requirements for Electrical Conductivity Testing in conjunction with Hardness Testing for positive identification of material specificationandlor heat treatment/temper condition of certain aluminium alloys. | |||||||||||||||||||||||||||||||||||||
| 3 | REFERENCED AND/OR ASSOCIATED DOCUMENTS |
| 3.1 | BS EN10003-1 | - | Metallic Materials Brinell Hardenss Test | |||||||||||||||||||||||||||||||||||
| 3.2 | BS ENISO 6507 | - | Vickers Hardness Testing | |||||||||||||||||||||||||||||||||||
| 3.3 | BS ENISO 10109-1 | - | Metallic Hardness Tested Rcokwell & Rcokwell | |||||||||||||||||||||||||||||||||||
| Superficial | |||||||||||||||||||||||||||||||||||||
| 3.4 | ASTME.18 - Rockwell Hardness and Rockwell Superficial |
| 3.5 | Relevant Process Specifications, i.e. | |||||||||||||||||||||||||||||||||||||
| BAEP 9088 - Electrical Conductivity Testing of Aluminium | |||||||||||||||||||||||||||||||||||||||
| BAEP 9226 – Hardness Testing – Metallic Materials | |||||||||||||||||||||||||||||||||||||||
| 3.8 | RAIFSAS - Raytheon Aircraft Integrated Foreign Supplier |
| Assurance System for Externally Procured | ||
| Supplies and Services – Foreign Suppliers. | ||
| QAIS Forms\RAIFSAS.DOC - Click here to view | ||
| 4 | TEST PROCEDURE |
| 4.1 | Requirements for the correct application and certification of hardness testing are contained in the applicable process specification(s) (ref. paragraph 3), which must be complied with. |
| 5.1 | General |
| 5.2 | Certification | |||||||||||||||||||||||||||||||||||||
| 5.2.1 | Each new hardness testing machine, or machine returned from the manufacturer after major overhaul or reconditioning, must be accompanied by a certificate of accuracy and correct functioning throughout the operating range, in accordance with the requirements of the relevant Standard, as referenced in paragraph 3. |
| 5.2.2 | Each new or reconditioned approved portable test instrument, not meeting the requirements of a Standard, as referenced in paragraph 3, must be similarly certified by the manufacturers or other approved technical authority acceptable to RAQSC. |
| 5.3 | In Service Checks |
| 5.3.1 | The accuracy of each hardness testing machine shall be checked daily using a calibrated test block(s) (ref. Appendix 'A'). A separate check shall be made in respect of each scale and/or load and hardness level at which the machine is to be used. Each check shall be undertaken in accordance with the requirements of the relevant Standard as referenced in paragraph 3. |
| Particular attention must be paid to the recommended precautions regarding accuracy of measuring microscopes and apparatus, correct seating of indentors, etc., as applicable. |
| NOTE: | In order to avoid unnecessary degradation of test blocks in the case of machines used only at infrequent intervals, the periodicity of the above check may be varied from daily to before each period of use. |
| 5.3.2 | Concurrent with the above check, the condition of each test block shall be assessed. Particular attention shall be paid to freedom from damage and to surface condition, together with the ability to continue to meet the requirements of the relevant Standard in respect of minimum distance between any two indentations and between any indentation and the edge of the block. |
| 5.3.3 | The condition of each indentor in use shall be examined if suspect hardness readings are achieved or at least once a week by the following methods:- |
| i) | Visually using a minimum X10 magnification. |
| ii) | Examination of hardness impressions in respect of each scale and/or each load in use, tests being conducted on a flat polished surface with a minimum of X10 magnification being used for the examination. |
| 5.3.4 | For Vickers Hardenss the diamond indentors shall be submitted to a UKAS approved facility for recalibration. | |
| 5.3.5 | The accuracy of portable test instruments not covered by a British Standard shall be checked against a test block before use and at frequent intervals during each period of use. |
| 5.3.6 | The accuracy, correct functioning and general condition of each hardness testing machine shall be checked and certified by the manufacturer or other approved technical authority acceptable to RAQSC, at intervals not exceeding six months. The check shall be in accordance with the verification procedure defined in the relevant Standard as referenced in paragraph 3 or, in the case of a portable test instrument not covered by a Standard, in accordance with procedures defined by the manufacturer or approved technical authority. |
| 6 | PERSONNEL QUALIFICATION/CLASSIFICATON |
| 6.1 | All personnel employed on applicable hardness testing facilities (ref. paragraph 2), shall be qualified/classified in accordance with applicable requirements of QAIS No. Q5B-007. |
| 7.1 | Adequate records shall be maintained as evidence of compliance with the requirements of this instruction. |
| 7.2 | Such records shall be made available for scrutiny by appropriate RAQSC representatives if so required. |
| 8.1 | The availability, adequacy and application of suitable procedure for control of hardness testing will, where appropriate, be amongst aspects considered during evaluation of a supplier's Quality system as part of RAQSC Qualification Procedure and during subsequent surveillance visits (ref. RAQSC/QA/SC1). |
| APPENDIX ‘A’ | ||
| 1 | PROCUREMENT |
| 1.1 | Calibrated test blocks for use in checking the accuracy of hardness testing machines, may be purchased from the equipment manufacturers or manufactured in accordance with the requirements of Section 4 of Part 2 of the relevant British Standard. In the latter case the blocks shall be calibrated and certified against standard hardness reference blocks, before use. | ||||||||||||||||||||||||||||||||||||
| 2 | USE OF TEST BLOCKS |
| 2.1 | Test indentations shall be made strictly in accordance with the procedure defined by the applicable specification, carefully observing relevant limitations, e.g. minimum distance between any two indentations or between any indentation and the edge of the blocks, etc. | ||||||||||||||||||||||||||||||||||||
