Students of 3rd semester, mechanical branch students have a course titled ‘Fundamentals of Metallurgy’ with lab titled ‘Metallurgy Lab’. To realise importance of the course and lab practises in industrial scenario a visit to Jinabakul forgings Pvt. Ltd., plant 1 and 4 was done dated 01/09/18. A total of 40 students participated in the visit. Assistant Professor, Vivek Tiwary accompanied the students.

Company details

Jnabakul Forgings Pvt. Ltd. was incorporated in the Year1983. Started by Four promoters having vast experience in Forging, Metallurgy, Marketing and Administration with a total capital of INR1.0 Million and started the business of Manufacturing Bearing Races in 1988. The company manufacture of ferrous closed die and ring rolled forgings in raw and machined conditions. Major customers of the company are SKF India Ltd, Timken India Ltd, NSK -ABC Ltd, National Engg. Industries Ltd.

Visit Details

The students first visited plant no. 4, Jina special Steels Pvt. Ltd., Honaga, wherein Closed die forgings, Magnetic Particle Inspection, quality control techniques carried out in the plant were demonstrated to the students. After this brief visit to the plant no. 4, plant no. 1 was visited. Mr. J. N. S. Rao – DGM Manufacturing introduced the students to the company. He took the students around the company explaining the various procedures carried out. The students were then taken to Metallurgical lab unit wherein Mr. K. Ravishankar, Manager – Metallurgy is the in charge. Mr. Ravishankar explained how the sampling is carried out by cutting the specimen from the final forged components. Then the cut specimens were given a rough paper polishing. The polished specimens were given the cloth polishing to make the surface mirror finish. After this, the specimens were washed in water, cleaned and etched to reveal the microstructure. These specimens were taken to metallurgical microscope wherein the internal structure were shown to the students. Apart from this,  the carbide networks, inclusions, grain size comparisons were demonstrated to the students. Apart from this regular process, the macrostructure and spectroscopy analysis was also demonstrated to the students. The spectroscopy analysis is done to confirm the percentage of carbon and chromium as 1 % and 1.5 % respectively.

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