Method for adding compensation amount of T-shaped section bar

Abstract

The invention discloses a method for adding the compensation amount of a T-shaped section bar, which comprises the following steps of: according to the width of a web plate and the thickness of a panel of the T-shaped section bar in a design drawing, respectively adding the allowance m in the length directions of the web plate and the panel in the cutting and blanking process. By means of the method, more than 90% of T-shaped section bar allowance trimming and cutting can be reduced. The secondary cutting of the T-shaped section bar is effectively reduced. The one-time machining forming of the T-shaped section bar is guaranteed, secondary correction of the size of the T-shaped section bar is reduced, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a method for adding compensation amount of a T-shaped bar. Background technique [0002] At present, in the field of domestic shipbuilding, precision shipbuilding has been vigorously promoted for decades. However, compared with advanced shipbuilding companies in Japan and South Korea, there is still a big gap in precision shipbuilding. There is still a large gap in the construction of the large group and the middle group of the subsections. The gaps of the T-profiles are common, requiring a lot of secondary cutting, which restricts the improvement of production efficiency. [0003] The gap problem of the T profile is mainly due to a series of operations such as welding deformation and pyrotechnic deformation, which lead to inaccurate addition of design margin. Under normal circumstances, domestic shipbuilding companies usually add 15-20mm extra allowance according to the re...

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Problems solved by technology

[0002] At present, in the field of domestic shipbuilding, precision shipbuilding has been vigorously promoted for decades. However, compared with advanced shipbuilding companies in Japan and South Korea, there is still a big gap in precision shipbuilding. There is still a large gap in the construction of the large group and the middle group in sections, and the gap between the T-profiles is common, requiring a lot of secondary cutting, which restricts the improvement of production efficiency

[0003] The problem of the breakage of the T profile is mainly due to a series of operations such as welding deformation and pyrotechnic deformation, which lead to inaccurate addition of design margins.

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