Snap from PCN WI Level 2 Training Session

By Decibel -
Student at PCN Welding Inspection Level 2 Training Program

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What is the Plate Lamination Defect?

By Decibel -
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Plate lamination defect is one of the primary processing discontinuity that originates during hot or cold forming processes and is considered as a serious metal plate defect.  All the metals contain discontinuities at micro and macro levels. These discontinuities, when above the acceptance level, are termed as defects. The discontinuities in metal are classified according to the stage of manufacturing in which they initiate.  Plate lamination defect can be defined as flat and thin subsurface separations present inside metal plate, parallel to the surface of the plates. The sources of this defect are inherent discontinuities present in metal such as inclusion and porosity, which are flattened during the rolling process.  Carbon Steel Plate Lamination Defect & Reasons A carbon steel plate is produced by the process of hot or cold rolling a thick slab. During this process, carbon steel may pass through the rollers many times to achieve the desired thickness. Each pass results in
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Comparison of the use of rutile and cellulosic electrodes Knowledge Sharing From Decibel.

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Comparison of the use of rutile and cellulosic electrodes Types of electrodes and their compositions Many types of manual metal arc (MMA) electrodes are available on the market. Depending on the main constituent of their flux, they are grouped into three categories: cellulosic, rutile and basic. All electrodes consist of a cored wire (typically 2.5–6mm diameter) coated by a flux. The core wire is generally made of low-quality riming steel and the fluxes contain many elements allowing refinement of the weld macrostructure. The composition of the flux impacts the electrodes’ behaviour. The main constituents of the different types of electrodes and the shielding gas created for each are described in Table 1 (Bowniszewski, 1979). Table 1 Main constituent of the three possible types of electrodes and shielding gas created by its combustion. Electrode type Main constituent Shielding gas created Rutile Titania (TiO2) Mainly CO2 Basic Calcium compounds Mainly CO2 Cellulosic
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NDT Level 2 With NAS 410

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NDT Level II Inspector Location Pune, Maharashtra Salary: 7 Lakhs Per Annum. Role Summary/Purpose: As part of the Multi-modal Manufacturing team, the NDT testing expert is responsible for establishing an efficient and continually improving In process quality systems as per AS 9100 / ISO 9001 and or NADCAP. This person will own developing and executing the NDT plan - in process quality inspection plan to address the k ey Quality deliverables in the project including analysis. Essential Responsibilities: - The position will report to the NDT Level III / Quality Manager. - Responsible to carry out inspection processes in FPI, Hydro, Radiography, and UT and other NDT processes. Coordinate with NDT Level III. - Work closely with NDT / Quality system teams to develop and implement AS 9100 / NADCAP procedures : understand requirements for certification, timing, and own all improvement actions necessary to obtain certifications, - Coordinate for Quality training needs. Facilitate, train, an
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