Preparing method of hot stamping forming die insert with shape follow-up cooling water way

Abstract

The invention discloses a preparing method of a hot stamping forming die insert with a shape follow-up cooling water way. The method comprises following steps that a, the lower half part shape of theshape follow-up cooling water way is machined on a common steel forging or steel casting base body; b, the machined pipeline corresponding to the shape follow-up cooling water way in shape is placed on the lower half portion shape in the step a; c, arc additive manufacturing of transition layer materials is carried out on an insert base body and the pipeline surface; d, secondary arc additive manufacturing of the high-temperature-wear-resisting strengthened layer material is carried out on the transition layer; e, the mold insert obtained after arc additive manufacturing is subject to slow cooling treatment after tempering; f, the mold insert obtained after cooling is subject to mechanical machining, and the mold surface shape and size precision meets the requirement. The problem that theshape follow-up cooling water way is hard to machine is solved, the service life of the mold is prolonged, the mold cooling efficiency is improved, and the mold manufacturing cost is reduced.

Description

Technical field [0001] The invention belongs to the field of mold preparation, and specifically relates to a method for preparing a hot stamping forming mold insert with a conformal cooling water channel. Background technique [0002] The design of hot stamping die occupies an important position in the hot stamping forming process. Sheet metal forming and quenching are completed in the hot stamping die. The design quality of the cooling water channel of the hot stamping die directly affects the cooling effect of the die. The traditional cooling water channel is usually a straight water channel. When the shape of the hot stamping part is complicated, the cooling uniformity of the hot stamping die is poor, and the cooling efficiency is low, which affects the quality and production efficiency of the final product. Conformal cooling water channel is a cooling water channel that changes with the change of mold cavity. The distance between the water channel and the mold surface is cons...

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Problems solved by technology

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a method for preparing a hot stamping die insert with a conformal cooling channel to solve the problem of difficult processing of the conformal cooling channel, and the method can also improve the mold Long service life, reduce mold manufacturing cost

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