LAMINATED HOT PRESS MEMBER AND METHOD OF PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a strong laminated hot press member free of poor hardening, wherein surface cracks does not occur in a laminated part of laminated steel sheets.SOLUTION: A laminated hot press member is formed by: laminating a first steel sheet 1 that is a zinc-plated steel sheet having a base material steel sheet 1a and a zinc-plated coating 1b, and a second steel sheet 2 that forms a laminated part 3 with the first steel sheet by laminating the second steel sheet on the first steel sheet through the zinc-plated steel sheet; and then performing a hot press forming. A method of producing the hot press member sequentially includes: a first step of forming a gap 6 of 0.03 to 2.0 mm between a skewness-added part 5 and the second steel plate that faces the skewness-added part 5, wherein the skewness-added part 5 is formed on a part or the whole of the base material steel sheet on which a part facing the inside of the laminated part is formed among the zinc-plated coating, and 1.5% or more skewness is added to the skewness-added part and a second step of laminating the first and second steel sheets in a state where the gap is formed, and then performing the hot press forming.