清洁度要求 TSES-1338-B

SPECIFICATION NUMBERSHEET1 OF 5DATETSES-1338August 10, 2010DNC0003701 Rev BSPECIFICATION NAMEComponent Cleanliness Specification1.Purpose The specification below has been developed for components designed for transmission control products. Its purpose is to ensure that component parts do not introduce contamination into an assembly or sub-assembly as a result of component provider processes that may affect the end assembly and / or customer quality. Definition: Component providers: Any supplier that provides parts to a BorgWarner assembly process including internal BorgWarner subcomponent processes.2.General Requirements All component providers are required to perform sedimentation testing as described in this specification. Part cleanliness capability is part of BorgWarner’s supplier selection process. If suppliers do not have the ability to perform sedimentation testing, a detailed action plan to bring the supplier to the expectations described below must be put in place (prior to PPAP). The component provider (external or internal to Borg Warner) must report the results to BorgWarner at a frequency agreed upon by BorgWarner and the component provider. The quantity of parts to be tested at the component provider will be based on lot production / usage. This information will be captured in the component provider’s and BorgWarner’s control plans and needs to be approved by the BW Supplier Quality department. In the event that this value is not recorded, the minimum quantity of components to be sampled must be greater than or equal to 30 parts per lot. o If, at the time of PPAP, the component provider does not meet or exceed the requirements, a Continuous Improvement Plan and/or Alternative Process Plan must be established prior to production start up. The component provider will be required to maintain parts received at BorgWarner to the specified acceptable level of cleanliness (see above). Shipment and packaging must not create adverse effects forcing parts to drift outside the limits of the cleanliness requirements. All sedimentation testing--SPECIFICATION NUMBERSHEET2 OF 5DATETSES-1338August 10, 2010DNC0003701 Rev BSPECIFICATION NAMEComponent Cleanliness Specification-shall be performed using components pulled directly from packaging as introduced to the assembly line at BorgWarner. For some specific components, alternate requirements may be specified on the drawing. This specific requirement supersedes this specification.3.Cleanliness Parts shall be free of foreign material and machining residue that does not fall within: o Primary – The print specification o Secondary – Appendix 1 The amount of foreign material will be measured per the procedure in section 4:-4.Procedure Equipment required: 1. Weight Scale – 0.1mg resolution or finer 2. Ultrasonic washing machine 3. Filter-mesh size < 10µm max diagonally, recommended diameter 47 mm 4. Cleaning solvent pre-filtered (The solvent type must be approved by BorgWarner supplier quality department) Procedure: A. Weigh the filter. This weight is called m1. B. The agreed sample quantity of parts are to be taken from a previously unopened shipping container and transferred to the test area in such a manner as to prevent any foreign material from contaminating the sample test parts. C. Place the parts on an uncontaminated tray and clean the parts with the ultrasonic machine for 1 minute. a. Exception: Coated, Powder Metal or Sintered components must not be ultrasonically washed. For these components, rinse parts thoroughly with solvent and collect. D. Filter the collected solvent through the filter paper by gravity or vacuum. E. Because oil may affect the weight of the filter, wash the filter with solvent before drying and weighing the filter. F. Dry the filter and weigh it. This weight is called m2.SPECIFICATION NUMBERSHEET3 OF 5DATETSES-1338August 10, 2010DNC0003701 Rev BSPECIFICATION NAMEComponent Cleanliness SpecificationG. Visually analyze the type of contamination and the size per requirements as defined in Appendix 1. H. The contamination level is the weight m2-m1. This weight should not exceed the specified amount (mg) per kg of parts. (See Requirements in Appendix 1). m2 – m1 (mg) Contamination level = Weight of tested parts (kg)5.Requirements Due to technical reasons the applicable requirements cannot be similar for every type of component. This is reflected in Table 1 of Appendix 1. This specification applies to many different component types; they are listed in Appendix 1 along with the cleanliness and weight requirements. If the supplied components do not fit into one of the groups listed in the table in Appendix 1, the component provider must contact the BorgWarner Supplier Quality department.A.D.C. CHANGE HISTORY A.D.C. 50760-140 DNC0001159 DNC0003701 CHG. IR A B A.D.C. CHG.SPECIFICATION NUMBERSHEET4 OF 5DATETSES-1338August 10, 2010DNC0003701 Rev BSPECIFICATION NAMEComponent Cleanliness SpecificationAPPENDIX 1Table 1: Values in table below denote number of particles permitted in each class per part. (Classes based on ISO16232-10:2007(E)) Component Process Weight † Class G (mg/kg ) 150 µm 200 µm 2 NR 2 NR 2 5 10 2 7 NR 100 NR 7 100 100 100 Class H 200 µm 400 µm 5 NR 10 NR 5 10 10 10 Class I 400 µm 600 µm 3 NR 1 NR 3 1 1 1 Class J 600 µm 1000 µm 0 NR 0 NR 1 0 0 1 Class K >= 1000 µm 0 NR 0 NR 0 0 0 0 Parts used for the analysis must be scrapped after test. Parts used for the analysis must be scrapped after test. CommentAll Machined components Die cas t Stampings Rubber components Gaskets PM/Sintered components Fasteners Lead frames / Plas tic components Filters Springs Sub-Ass emblies2 5 420 150 1001 20 250 2 20 0 10 0 0† Weight refers to the contaminant level as described in the section 4 - note HNotes: Weight (mg/kg) requirement in Appendix 1 is to be considered reference only for components that weigh less than 5 g. See Appendix 2 for definition of a particle.SPECIFICATION NUMBERSHEET5 OF 5DATETSES-1338August 10, 2010DNC0003701 Rev BSPECIFICATION NAMEComponent Cleanliness SpecificationAPPENDIX 2Particle definition: Only solid and/or ductile particles must be considered in the specification. The particles can be (but are not limited to): Metal (steel, aluminum, etc.), aluminum oxides, silicon carbides, tungsten carbides, etc. Glass fibers Plastic particles Rubber particles Removable flashFiber definition: Fibers are composed of organic or synthetic elements (cotton, hair, synthetic fiber, rubber, plastic…); the glass fiber is not included in this category. The fibers must meet specific geometry criteria: Length > 10 X diameter and diameter < 100 µm. These fibers shall be excluded from the specification.。