ASME B18.18:2017 pdf free download – Quality Assurance for Fasteners
2.5.3 Reinspection.
All sorted and/or reworked parts shall be resubmitted for lot sampling and inspec- tion for the characteristic(s) found to be nonconforming and all other characteristics that would be affected by the repair or reprocessing operation(s) at a sample size that is two times the size of the original. If no parts in the sample inspected are found to be nonconforming, the material may reenter the production flow or may be approved for delivery or use as applicable.
2.6 Records
The supplier shall maintain records ofinspections and tests as required by this plan. The records shall include the nature and number of observations made, number and type of deficiencies found, quantities of conforming and nonconforming parts, and any corrective action taken including any dispositions made in accordance with para. 2.5. Records shall be maintained for a mini- mum of 5 yr from the date of inspection, unless other- wise agreed upon by the purchaser and the supplier. Copies of the records shall be provided to the purchaser when requested.
2.7 Applicable
Characteristics Attributes to be evaluated during final inspection are outlined in the appropriate category sections of this Standard (see Table 1 or 2 as applicable). Product stan- dards that specify inspection attributes shall take prece- dence over those specified in this document. Product standards that dictate inspection attributes shall dictate all inspection attributes. A purchaser may specify inspection attributes in pur- chase documents. Purchasers that dictate inspection attributes shall dictate all inspection attributes.
2.8 Alteration
Services and Partially Fabricated Parts Alteration services and partially fabricated parts (e.g., washers, nuts, blanks, heat treating, and plating) may be purchased by the fastener supplier from subcontrac- tors for use in the production of fasteners, provided the following requirements are met:
(a) The fastener supplier shall be responsible to the purchaser for the quality of the final product. (b) The fastener supplier shall be responsible for the implementation of all requirements of this plan, includ- ing records.
(c) All lots that are processed by a subcontractor shall undergo inspection to determine if the parts conform to the requirements of the process and/or processes per- formed by the subcontractor.
A Category 2 plan utilizes documented and verifiable in-process controls structured at the producer’s discre- tion. Parts and documentation shall be in compliance with the requirements stated in this Standard and all supplemental requirements agreed upon between pro- ducer and purchaser. The producer shall provide evi- dence of the system structure upon request. Final inspectionshall be performed bythe producer with sam- ple size dependent on lot size.
4.3.1 Unless otherwise specified in the individual product standard, raw materials (rod, wire, or bar) shall be reviewed to determine that each coil or bundle has a mill identification and that each heat (batch, melt, cast, etc.) is accompanied by a mill certification of analysis or the equivalent. The raw material or its accompanying mill certification shall be inspected prior to release for fabrication to verify that it conforms to the specified material requirements.