溶接部材およびその製造方法

Title:

溶接部材およびその製造方法

Document Type and Number:

Japanese Patent JP6385411

Kind Code:

B2

Abstract:

The invention provides a welded member including a hot dip Zn-based alloy coated steel sheet as a base material and has excellent corrosion resistance and weld bead shear strength, and provides a method for manufacturing the welded member. In a welded member (10) in which a lower sheet (3) and an upper sheet (1), which are hot dip Zn-based alloy coated steel sheets, are stacked and arc-welded together, a weld bead (2) is formed so that a cross-sectional width W satisfies the following formula (1) and a blowhole occupancy Br represented by the following formula (2) becomes not more than 50%: 2T ≤ W ≤ 6T (1), Br = (∑di/L) × 100 (2), where T represents a thickness of hot dip Zn-based alloy coated steel sheet, di represents a length of i-th blowhole observed in X-ray radiography, and L represents a length of weld bead.

Inventors:

Kazuaki Hosomi
Nobutoki Tomokazu
Takefumi Nakako

Application Number:

JP2016212074A

Publication Date:

September 05, 2018

Filing Date:

October 28, 2016

Export Citation:

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