Device and method for warm forming of metal and carbon fiber prepreg composite material components

Abstract

The invention discloses a warm-hot forming device and method for a metal and carbon fiber prepreg composite material component in the field of lightweight composite material forming and processing. An outer blank holder is arranged between a female mold and a male mold. The middle of the outer blank holder is provided with a downwards concave step positioning groove. The top of the step positioning groove can contain a steel plate, and an inner blank holder is placed at the bottom of the step positioning groove. The upper surface of the inner blank holder can contain a carbon fiber prepreg blank. A pushing plate is arranged under the male mold. The top ends of a first outer blank holder pushing rod and a second outer blank holder pushing rod can upwards jack the outer blank holder, and the bottom ends of the first outer blank holder pushing rod and the second outer blank holder pushing rod are fixedly connected to the pushing plate. The top ends of a first inner blank holder pushing rod and a second inner blank holder pushing rod can upwards jack the inner blank holder, and the bottom ends of the first inner blank holder pushing rod and the second inner blank holder pushing rod are each connected with a hydraulic cylinder. A third hydraulic cylinder is connected under the pushing plate. Large adjustable constraint resistance is applied to the steel plate. By means of the adjustable constraint resistance with a small effect on the carbon fiber prepreg blank, two heterogeneous component materials have the mutual matching forming capacities, and warm forming and hot forming are completed in a one-time stamping stroke.

Description

technical field [0001] The invention belongs to the field of lightweight composite material molding and processing, and specifically relates to a method and device for manufacturing metal and carbon fiber prepreg composite components, which are suitable for the composite of metal steel plates and carbon fiber prepregs composed of metal steel plates and carbon fiber prepregs. Batch manufacturing of material components (Steel / CFRP components for short). Background technique [0002] Two types of lightweight materials are widely used at present, one is high / ultra-high strength steel plate, because there are problems such as complex forming process, high manufacturing cost, large forming force required, severe springback, and limited thickness reduction, etc. Lightweight potential; the second is Carbon Fiber Reinforced Plastic (CFRP), although it has high specific strength, specific stiffness and low density, but it has low elongation, poor fracture toughness, long production cy...

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Problems solved by technology

[0003] Existing composite materials and component manufacturing technologies composed of heterogeneous materials include the bimetal composite plate and its processing technology disclosed in the document with Chinese patent application number 200710087145.X and the document disclosed in the document with Chinese patent application number 201210364111.1 The bimetallic composite sheet and its manufacturing process are mainly aimed at normal temperature rolling and heating rolling processing of heterogeneous metal composite laminates. An adhesive layer needs to be applied between the surface layer and the bottom layer, so the process is complicated and inefficient, and there is no involvement The problem of processing heterogeneous composite components of complex shapes without obvious advantages in terms of weight reduction

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