Learning nugget: Metallurgical defects
SUMMARY:
Casting defects are deviations, imperfections, or deficiencies in parts relative to the quality specifications established by the service requirement and the design. Most of these defects originate from process deviations. The causes that promote metallurgical defects are implicitly related to inadequate metallurgical quality of the metal and affect the entire manufacturing process.
The appearance of these types of defects may be related to the chemical composition of the metal, an inadequate melting procedure, nodulization treatment, inoculation, and metal casting. Defects of metallurgical origin can be classified into four categories: defects related to the morphology and/or distribution of graphite; defects related to the matrix structure; defects related to the internal soundness of the parts, i.e., the presence of shrinkage defects and/or porosities; and, finally, defects derived from the production process that have their origin in metallurgical quality.
INDEX:
1. INTRODUCTION
2. GRAPHITIC DEFECTS
3. STRUCTURAL OR MATRIX DEFECTS
4. POROSITIES
5. PROCESS DEFECTS
(*) This training session on metallurgical defects is part of the “Introduction to Iron Casting” series, which consists of 13 short videos lasting between 15 and 40 minutes.
Language:
English (soon)
Target audience:
- Technical and non-technical staff of iron foundry companies.
- New hires.
“The Foundry of the Future is that of connected processes that is able to take advantage of the knowledge generated inside the company at the same time that it keeps learning from its manufacturing and market experience.
Along with a deep knowledge of metallurgy, Industry 4.0 technologies, advanced data management systems and machine learning technologies have landed in this industry to transform the way castings are conceived”.
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