Abstract
The thin sheets of CRNO electrical steel are widely used in motors of electric vehicles (EV) and several domestic appliances. The thin sheets of thickness 0.5 mm are stacked and welded across the edges to form the stator core for use in the electric motors. The present work aims to study the distortion variations observed on the CRNO thin sheets under different range of welding current (30–110 A). The stacks comprising of thin sheets of CRNO with total thickness of 50 mm (100 sheets × 0.5 mm) post-welding are observed for evaluating the distortion on the surface of stacks. The measurement of surface distortion is done using a surface profilometer for observing the variation on the surface of stacks. The maximum and minimum surface distortion in the range 0.66 to −0.27 mm and 0.17 to −0.08 mm, respectively, is observed for weld samples at different welding current. The distortion of thin CRNO sheets results in deterioration of material properties affecting the performance of electrical systems. The present study aims to establish a relation between the surface distortions at different locations across the weld zone with varying input welding current.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Honda A (2003), Electrical steel for motors of electric and hybrid vehicles. Kawasaki steel technical report, vol 48, pp 33–38
Petrovic DS (2010) Non-oriented electrical steel sheets. Mater Technol 44(6):317–325
Kurosaki Y, Mogi H, Fujii H, Kubota T, Shiozaki M (2008) Importance of punching and workability in non-oriented electrical steel sheets. J Magn Magn Mater 320(20):2474–2480
Lindenmo M, Coombs A, Snell D (2000) Advantages, properties and types of coatings on non-oriented electrical steels. J Magn Magn Mater 215:79–82
Fischer O, Schneider J (2003) Influence of deformation process on the improvement of non-oriented electrical steel. J Magn Magn Mater 254–255:302–306
Takashima M, Morito N, Honda A, Maeda C (1999) Nonoriented electrical steel sheet with low iron loss for high-efficiency motor cores. IEEE Trans Magn, Part 2 35(1):557–561
Yabumoto M, Wakisaka T, Suzuki N, Kaido C, Kubota T (2003) Electrical steel sheet for traction motors of hybrid/electric vehicles. Nippon steel technical report, vol 87, pp 57–61
Schoppa A, Schneider J, Wuppermann CD, Bakon T (2003) Influence of welding and sticking of laminations on the magnetic properties of non-oriented electrical steels. J Magn Magn Mater 254(255):367–369
Zhang Y, Wang H, Chen K, Li S (2017) Comparison of laser and TIG welding of laminated electrical steels. J Mater Process Technol 247:55–63. https://doi.org/10.1016/j.jmatprotec.2017.04.010
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Dharmik, B.Y., Lautre, N.K. (2021). A Study on the Effect of GTAW Input Current on Surface Distortion of Thin CRNO Electrical Steel Sheets. In: Kalamkar, V., Monkova, K. (eds) Advances in Mechanical Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-3639-7_33
Download citation
DOI: https://doi.org/10.1007/978-981-15-3639-7_33
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-15-3638-0
Online ISBN: 978-981-15-3639-7
eBook Packages: EngineeringEngineering (R0)