Q02500 CC#26 Examinacion Visual

7/29/2019 Q02500 CC#26 Examinacion Visual

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Doc No: Q02500Rev: O of 6

Subject to contractual terms and conditions to the contrary, this document and all the information contained herein are the confidential and exclusiveproperty of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.

VISUAL EXAMINATION - RAW-COMPONENTS-ASSEMBLIES

Rev ECN No. Date Reviewed By Approved By Status

O 1179856 1 1 - O C T - 2 0 1 1 McLain, Rocky Glidden, Greg RELEASED

Summary:

This specification defines the requirements for visual examination of parts prior to

delivery to, or acceptance by FMC. The term “parts” include raw material, semi-finishedcomponents, finished components and assemblies. This applies to both newmanufactured and refurbished materials.





1.0 Visual Examination Requirements

General:

Visual inspection shall be performed by FMC or FMC suppliers when receiving parts,prior to delivering parts, and at other specified processing steps. Parts shall bechecked to ensure they are correctly marked, they are complete, and they are freefrom handling damage, or other visual surface imperfections that could interfere withthe parts function. The part shall be free from foreign material such as metalshavings, and shall be examined for obvious defects tha t can be detected visuallywithout measuring. When visual observations give reason to suspect that dimensionsor surface finish are incorrect, measurements shall be made. All accessible crossdrilled holes for production or hydraulic fluid shall be inspected with a boroscope per Q00239.

Castings:

Inspection requirements shall be in accordance with the reference photographs of surface irregularities shown in the latest revision of specification MSS-SP-55 issuedby the Manufacturers Standardization Society. Acceptance Criteria for Type I - noneaccepted; for Type II thru Type XII - A & B acceptable only.

Forgings & Wrought Products:

Forged surfaces shall be free from visual cracks, scabs, seams, laps, pipe, excessivescale, laminations, and any other condition that affects the surface quality of thematerial.

Additional requirements stated in Section 3.0

Finished Products – Components and Assemblies:

Finished products are to be free from visual inclusions, burrs, sharp corners, cracks,slag, lack of fusion, forging or casting seams, torn threads, handling damage and anyother condition that affects the surface quality of the material.

2.0 Personnel Vision Requirements

Personnel performing visual examination shall have an eye examination on an annualbasis and shall be able to demonstrate natural or corrected near-distance acuity in at

least one eye by reading a Jaeger Number 1 test chart or equivalent at a distance of 12-15 inches. per the following test:

Color Contrast Differentiation

This examination will demonstrate the capability of distinguishing and differentiatingcontrast among colors or shades of gray used in the method. This should beconducted upon initial certification and five-year intervals thereafter.

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Vision examinations shall be administered by Ophthalmologists, Optometrists, other qualified medical professionals, ASNT/EN 473 Level III personnel, or other nationallyaccredited Level-III.

3.0 Acceptance Criteria for Forgings

3.1 Proof ground discontinuities, seams, laps, voids, handling damage andlaminations shall not exceed ~ 1/8” (3.5 mm) depth or least material conditionof the forging drawing whichever is greater.





3.2 Excessive scale is determined by the percent of scale remaining on the non-

machined surfaces (body) of the forging after shotblast or sandblast.Embedded scale that cannot be removed with shotblast or sandblast shall beground and blended to remove the scale.

3.2.1 For PSL-3 and higher forging, 100% of scale shall be cleaned off the body of the forging. To enable volumetric NDE, the surface roughness of the as forgedor as cast material must allow proper coupling of the search units, typically amaximum of between 250-350 RMS. The NDE technician shall ascertain thesurface roughness suitability and direct the need for surface grinding in spotswhere required. The surface shall be comparable to the reference block usedfor calibration.

3.2.2 For PSL-2 Forgings, 80% of scale as needed to conduct inspection per 3.1shall be cleaned off the body of the forging

3.3 Die discontinuities (parting lines or ridges often called die cracks) should notleave excess stock on the body of the forging greater than approximately 1/8”(3.5 mm) above the normal forge surface. An excess number of these (see





photos) may also be detrimental in subsequent machining thereby, requiringremoval by grinding.

3.4 Parting line grinding shall be flush and uniform for PSL 3 forgings to enablevolumetric NDE. Excessive grinding marks and irregularities (chop marks)greater than (>) 0.09" deep are not acceptable





3.5 Rust is not a basis for rejection. Rust is a bi-product of alloy raw material andthe shot used to clean the forgings.

Q02500 CC#26 Examinacion Visual

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