A 3D printing repair ink material and method suitable for rolling steel

Abstract

The invention discloses a 3D printing repair ink material and method suitable for rolling steel products. The ink material is a powder material, which is characterized in that it contains: C: 0.4wt%, Fe: 89wt%, Si: 0.2wt%, Mn : 3wt%, Cr: 2wt%, V: 0.4wt%, W: 1wt%, Ti: 1wt%, and the rest are impurities. The 3D printing process uses a selective laser sintering process or a laser selective melting process. The invention uses a reasonable 3D printing process to clad the metal powder on the repaired surface, restore the geometric size of the base material without changing the physical and chemical properties.

Description

technical field

[0001] The invention belongs to the technical field of 3D printing, and in particular relates to a method for repairing defects in rolled steel. Background technique

[0002] 3D printing technology (additive manufacturing technology) is an emerging manufacturing technology based on digital models that accumulate materials layer by layer to produce physical objects. It reflects the close combination of information network technology, advanced material technology and digital manufacturing technology. It is an advanced manufacturing technology. important part of the industry. After years of development, my country's additive manufacturing technology has basically synchronized with the world's advanced level, and has reached the international advanced level in some technical fields such as additive manufacturing of high-performance complex large-scale metal load-bearing components. Melting, laser near-net forming, fused deposition forming, electron beam selective...