Method for rapidly positioning internal defect part of complex casting and accurately repairing

Abstract

The invention belongs to the technical field of casting, and particularly relates to a method for rapidly positioning an internal defect part of a complex casting and accurately repairing. The methodcomprises the following steps of identifying the corresponding position of the internal defect of the casting on the outer surface through a positioning mark on a bottom plate and the bottom plate placement mode; when it is judged that the internal defect is located close to the inner surface position in the wall thickness direction, a magnet is fixed at the mark position of an outer-type surface,the other magnet is close to the corresponding position of the inner surface, and the magnet is adsorbed and fixed to the inner surface of the casting through the magnetic action, so that the relative position of the internal defect on the inner surface is determined; and after the internal defect is completely eliminated, and accurately repairing is carried out for the position. Aiming at the difficulty of locating internal defects of a complex structure casting, the magnetic action of the magnet is utilized, the defect position can be quickly and accurately identified on the inner surface of the casting, the depth of the outer surface can be reduced, the repairing workload is reduced, and the deformation of the casting caused by large repair area and depth is avoided.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a method for quickly locating internal defect parts of complex castings and accurately repairing them. Background technique [0002] With the rapid development of weapons and equipment, the product structure of aluminum alloy parts is becoming more and more complex, and the internal quality requirements are very strict. Therefore, it is relatively difficult to pass the first pass in the casting production process. The general design requirements allow the positioning and troubleshooting of internal defective parts , Repair processing. In the process of scientific research and production, X-ray inspection is carried out on castings. If there are defects exceeding the standard inside and can be repaired by repair welding, it is necessary to locate the defect position, grind and troubleshoot, and repair welding after confirmation. This work requires X-ray inspectors to ...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a method for quickly locating and accurately repairing internal defects of complex castings, so as to solve the technical problem that conventional methods cannot accurately locate defects in large complex structural castings.