Sheet-Metal Cosmetics Standard
A worldwide standard for inspection of sheet-metal parts and assemblies at C & D’s PED CPS Toronto
and its manufacturing sites.
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1. Introduction（介绍）
This standard applies to sheet-metal parts, non-plated, pre-plated, post-plated, or coated, which are external to a product and either constantly, occasionally, or not readily visible to the customer. In case a customer’s cosmetics specification exists, this standard is superseded by the customer’s specification.
这个标准适用于无电镀、预镀、后镀或是有涂层的五金件，不管这个产品的外观客户是经常可见、偶尔可见或是不容易看见。如果客户有检验标准，那么以客户的标准为准。
2. Cosmetic Surface Classifications（表面分级）
Class A: Highly decorative surface in constant view of the customer, e.g. front & top
face of an office equipment.
A级：客户经常可见的高装饰性表面。如：办公设备正面和顶面。
Class B: Moderately decorative surface in occasional view of the customer, e.g. front,
top & sides of a power supply module.
B级：客户不是很经常看见的一般装饰性表面：电源的正面、顶面或者侧面。 Class C: Non-decorative surface not readily visible to the customer, e.g. back &
bottom of a power supply module.
C级：客户很难看见的非装饰性表面：电源的背面或是底面。
In general, Class B or Class C surface quality applies to the chassis of CPS Toronto products, which are mostly AC/DC or DC/DC power supply modules.
一般来说B和C级适用于CPS Toronto产品（大部分为AC/DC 或 DC/DC电源）底盘。
3. Inspection Process检验程序
For inspection, all parts should be free from dirt, grease, oil, excess material, corrosion and other detrimental substances. Dust caused by shipping material chafing is acceptable if it can be brushed off or blown off with air.
对于检验来说，所有的部件表面都不能有污垢、油污、杂质、磨损或其它的有害物质。如果是运输过程中造成的脏污且能擦掉的可以被接收。 3.1. Lighting Requirements照明需求
Cool white fluorescent light of 80 to 120 foot-candles. 白色冷荧光灯80 -120 fc
3.2. Viewing Angle & Manipulation观察角度及操作
Surfaces shall be viewed without the aid of magnification, at an angle of 45 degrees to the normal of the surface to be inspected. Class A surfaces shall be manipulated, by rotating the part 30 degrees to the left and right, during
inspection to achieve maximum reflection of a light source. Class B and Class C surfaces shall NOT be manipulated during inspection.
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目视（不需要放大镜），与被检验的面成45度角，A级表面检验中还需要左右各旋转30度检验，检验时灯光要充足。B和C级表面无需旋转30度检验。
3.3. Viewing Distance & Time检验距离&时间
Class A B C Viewing Distance 18” (460 mm) 18” (460 mm) 24” (610 mm) Viewing Time 10s 5s 3s
4. Defect Definitions失效定义
4.1 Abrasion: A scaled or rubbed surface imperfection characterized by its large width and length relative to its depth.
磨损：表面有鳞状或是摩擦造成，不合格现象用长宽来表示。 4.2 Dent: A depression or hollow made by impact or pressure. 凹痕：碰撞或挤压形成的压痕或是凹坑。
4.3 Discoloration: Any change from original colour, intended colour or inconsistent colour.
色差：与原色或是要求颜色的不一致或是不协调。
4.4 Fingerprints: Marks caused by touch of fingers and permanently stained on the surface.
手印：手指接触表面造成的痕迹，不能被擦除。
4.5 Gouge: A groove on a part surface caused by a sharp object, an indention that can
be detected by fingers.
圆凿：锋利的物体碰触产生的表面凹槽，手指可感觉出来。
4.6 Grease or Oil: Materials used in the fabrication process and left on the surface. 油污：生产过程中物质残留在表面。
4.7 Grit/dust/Lint/speck: Any unintended substances in the coating or on the surface. 沙砾、灰尘、纤维、斑点:涂层或表面上有杂质。
4.8 Marks: Scuff or other marks on base material that remains visible after plating or
coatings. 基材上的磨损或其它痕迹，电镀或涂层之后仍然可见。
4.9 Pits: Small discontinuities (or craters) in the material surface which result from the
removal of roll inclusions and/or oxidization. 磨痕？ 去除夹杂物或表面氧化造成表面的不连续
4.10 Plating Marks: Visible inconsistencies in the surface due to the plating process, such as bleed outs, water runs and hook marks.
电镀不良：电镀的过程中产生的可见的表面不一致，如气泡水印挂钩痕迹等 4.11 Rainbow Effect: A type of discoloration on zinc plating. 彩纹：镀锌产品表面色差的一种。
4.12 Rust / Oxidation: Chemical reaction of exposed base metal with oxygen (air). 生锈、氧化：裸露基材与氧气发生的化学反应。
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4.13 Scratches: Shallow marks in the surface that is characterized by its long length relative to its depth and width; not felt by fingers.
划痕：表面浅痕，不合格现象用长度表示，手指感觉不到。
4.14 Tooling Marks: Normal process marks by the forming tools and dies. The marks are consistent on all parts and are located at the forming and bending areas.
模印：成型过程中造成的痕迹（成型和折弯处）。
5. Accept/Reject Criteria接收/拒收标准
5.1 Acceptable Class A, Class B, or Class C defects should not affect Fit and/or
Function. In cases affecting either or both, the parts are automatic rejects.
可接受的A/B/C缺陷都不能影响装配和功能。一旦影响两个或其中一个都拒收。
5.2 50 square inch area is the limit for counting the number of defects found acceptable
within that surface area. For larger surfaces, the number of defects allowed increases proportionally. Clustering of more than two defects is not acceptable. 表面可接收的缺陷数是在50平方英寸的范围内计算。表面范围更大，则可允许的缺陷数相应增加。超过两种缺陷则拒收。
5.3 Accept or Reject the part according to the Tolerance Table below: Classification Abrasion 磨损 A No discoloration; No exposure of base metal; <0.125” long 无色差 不暴露基材 长度<0.125” B No discoloration; No exposure of base metal; Fit in Ø1.0” circle; Max qty 2 in Ø4.0” area 无色差 不暴露基材 在Ø1.0”范围内 Ø4.0”范围内最多2处 Accept接收 Reject拒收 C No discoloration; No exposure of base metal; Fit in Ø1.0” circle; Max qty 3 in Ø6.0” area 无色差 不暴露基材 在Ø1.0”范围内 Ø6.0”范围内最多3处 Accept接收 Accept (small number) 接收（数量少） Accept接收 Accept 接收 No discoloration; No exposure of base metal; <Ø0.50\" x 0.02\"Deep, Max qty 1 per surface area 无色差 不暴露基材 范围Ø0.50\"深度<0.02” 每一面最多1个 Accept 接收 Discoloration色差 Fingerprints (permanently stained) 手印（不能被擦除） Grease or Oil油污 Grit/dust/Lint/speck 沙砾/灰尘/纤维/斑点 Gouge & Dent felt by fingers 凹痕 手指可感觉的到 Reject拒收 Reject拒收 Reject拒收 Reject 拒收 Reject 拒收 Marks Reject拒收 Reject拒收 Accept 接收 No discoloration; No exposure of base metal; <Ø0.06\" x 0.006\"Deep, Max qty 1 per surface area 无色差 不暴露基材 范围Ø0.06\"深度<0.006” 每一面最多1个 <0.06\"L x 0.010\"Deep, Max qty 4 per surface area <0.06\"L x 0.010\"Deep, 每一面最多4个 Page 4 of 5 Sheet-Metal Cosmetics Standard – CPS-STD-XXXX Rev 0
Pits Reject拒收
No exposure of base metal; Max qty 6 per surface area 不暴露基材每面最多6个 Reject Blisters; No exposure of base metal 水泡拒收 不暴露基材 Accept 接收 Accept on sheared edges of pre-plated material 在预镀材料边缘可接收 No exposure of base metal; <0.25\"L x 0.015\"W, Max qty 6 per surface area; <1.0\"L x 0.005\"W, Max qty 2 per surface area 不暴露基材 <0.25\"L x 0.015\"W, 每一面最多6条 <1.0\"L x 0.005\"W, 每一面最多2条
Accept接收 Plating Marks 电镀不良 Reject拒收 拒收 Rainbow effect (on zinc plating) 镀锌产品 彩纹 Rust / Oxidation 生锈/氧化 Reject 拒收 Reject 拒收 Reject Blisters; No exposure of base metal 水泡拒收 不暴露基材 Accept 接收 Accept on sheared edges of pre-plated material 在预镀材料边缘可接收 No exposure of base metal; <0.25\"L x 0.015\"W, Max qty 15 per surface area; <1.0\"L x 0.005\"W, Max qty 3 per surface area; <2.5\"L x 0.005\"W, Max qty 2 per surface area 不暴露基材 <0.25\"L x 0.015\"W, 每一面最多15条 <1.0\"L x 0.005\"W, 每一面最多3条 <2.5\"L x 0.005\"W, 每一面最多2条 Accept 接收 Scratch not felt by fingers 划痕，手指感觉不到 No exposure of base metal; <0.10\"L x 0.015\"W, Max 3 per surface area 不暴露基材 <0.10\"L x 0.015\"W, 每一面最多3条 Tooling Marks 模印 Reject 拒收 Accept on bends; No exposure of base metal. 不暴露基材
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