Chamfering process in ship T profile production process

Abstract

The invention belongs to the field of ship manufacturing, and particularly discloses a chamfering process in the ship T profile production process. The chamfering process includes the steps that chamfering scale marks are marked on free sides of a T profile panel, the portions, except for the chamfering scale marks, of the T profile panel are heated through a laser heater, the heated portions arerolled and chamfered, the chamfered portions are cooled and shaped, and a T profile is formed through welding. Firstly, the chamfering scale marks are marked, the chamfered portions of the panel are locally heated in a laser heating manner, the deformation performance of the chamfered portions is guaranteed, and sufficient deformation during following rolling is facilitated; during rolling, the chamfering radian is limited through a guide circular shaft, and the forming precision of chamfering fillets is guaranteed; after rolling is completed, the rolled portions are cooled and shaped in a cold air conveying manner, and the rolled portions are conveniently kept in a chamfering state and are not prone to rebounding; and it is guaranteed that rolling and cooling links are immediately carriedout after heating is completed through the form that heating and side rolling are alternately carried out, heat dissipation is low, the deformation time is short, and the chamfering quality is guaranteed.

Description

technical field [0001] The invention relates to the field of shipbuilding, in particular to a chamfering process in the production process of ship T profiles. Background technique [0002] Human shipbuilding has a long history. Due to the development of shipping and military needs, ships tend to be large and specialized, and shipbuilding technology develops rapidly. Shipbuilding has become one of the most important heavy industry sectors in the world. The T-shaped bar in the shipbuilding field is generally composed of two steel plates, that is, the panel and the web, which are assembled and welded in a way that is perpendicular to each other to form a "T" shape. [0003] Chamfering is the outer right angle or inner right angle to the workpiece, slightly chamfered to avoid stress concentration, so as not to scratch fingers during installation. At present, when chamfering the panel of the T profile, the chamfering is usually completed in the form of direct rolling. This metho...

AI Technical Summary

Problems solved by technology

At present, when chamfering the panel of the T profile, the chamfering is usually completed by direct rolling. This method leads to poor deformation of the plate, and a slight rebound is prone to occur after chamfering, which affects the processing accuracy.