Method for the post-treatment of deformed high-grade steel blanks
AssigneeNeef GmbH & Co. KG
InventorManfred Neef
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Abstract
A method for post-treatment of single high-grade steel blanks produced from deep-drawable circles or sections of high-grade steel by deep-drawing, pressing, rolling and deformation. According to this invention, the completed blanks are post-treated directly after being produced, in a drum which is hard-faced with hard granulate particles and which moves in a rotating manner. Thus, changes in the surface of the single high-grade steel blanks produced, caused by material stresses occurring during the production process, are avoided, provide the high-grade steel blanks with an optimum appearance.
Claims4
A method for aftertreatment of workpieces produced by deep-drawing, punching, rolling and shaping with hard granulate particles in a drum which can be put into rotary motion, the method comprising:
- producing the workpieces from one of high-quality steel blanks and cut-to-size blanks capable of being deep-drawn of a thickness of a material of 1 mm to 1.2 mm in immediately successive method steps, and aftertreating the workpieces immediately thereafter in a drum, wherein at least one of an aftertreatment time and a number of revolutions of the drum is selected as a function of at least one of the thickness of the material and a size of a surface of the castings (10), and wherein a diameter of a grain size of ceramic particles used as granulate particles is less than twice a radius of at least one of rounded convex and concave surface areas of the castings (10).
Dependencies are inferred from the claim text.