Dear colleagues,
I'm interested in the turning of Stellite coatings produced by thermal spraying, particularly, produced by the HVOF technique. We have performed several short tests with conventional refrigeration by means of cutting fluids and the results are quite good in terms of surface quality. However, I would also like to test other alternatives because of the sustainability of the process. Probably, dry machining is not an adequate one by I'm considering others such as Minimum Quantity Lubrication, cryogenic refrigeration or the use of gases in combination with solid lubricants. So, I would like to kindly ask you about that, hoping that you have valuable experience in the topic or closely related.
Thank you very much for your attention and guidance.
Hi Diego,
Seeking potential applications for a new layer named ChroSiMol (32% - Cr, 32% - Mo, 32% - Co or 80Ni20Cr and 4% - Si), which would possibly very suitable for this application. This layer is free of cracks and pores, has a hardness of about 900 HV and adhesion to substrates made of steel > 250 MPa. For coating, I use atmospheric plasma spraying with the burner Axial III (only external coating).
I like to coat samples and all the parts with the layer ChroSiMol for you.
Regards
Vadim
Dear sir,
You can prefer cryogenic cooling. though some of the main issues such as initial investment and safety are concerned with Cryogenics, it gives better results with the materials in this category.
Dear Shrikant Gunjal,
thank you for your answer. Do you have any experience with the use of cryogenics in the machining of these coatings or do you know where to find it in the specialized literature? I'm interested in the use of the different methods of cryogenic cooling but, unfortunately, I don't have suitable information to start on.
Thank you. Best regards,
Diego
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