What material is used for automotive stamping parts

What materials are used for automotive stamping parts? 1. The principle of material selection for automotive stamping parts. When selecting materials, first select metal materials with different mechanical properties according to the type of automotive stamping and use characteristics, so as to achieve the purpose of not only ensuring product quality, but also saving materials. Generally, the following principles should be followed when selecting materials for automotive stamping parts: a. The selected material should first meet the performance requirements of auto parts; b. The selected material must have better process performance; c. The selected material must have a better economy Sex. 2. Materials generally selected for automotive stamping parts. A large number of cold stamping processes are used in the production of automotive stamping parts to meet the needs of the automotive stamping industry for multiple varieties and mass production. In medium and heavy-duty vehicles, most of the covering parts such as the outer panel of the body, and some load-bearing and supporting parts such as the frame, the compartment and other auto parts are all automobile stamping parts. The steel used for cold stamping is mainly steel plate and steel strip, accounting for 72.6% of the steel consumption of the whole vehicle. Cold stamping materials are closely related to the production of automotive stamping parts. The quality of the material not only determines the performance of the product, but also directly affects the performance of the product. The process design of automobile stamping process affects the quality, cost, service life and production organization of the product. Therefore, the reasonable selection of materials is an important and complicated task. 3. The relationship between the selection of materials for automotive stampings and their corresponding performance. Automotive stampings are mainly car body panels, frame longitudinal and cross beams, compartments, wheels and engine covers, as well as some support parts and connectors. The use and working conditions of each specific auto parts are different, and the loads they bear are different, so the requirements for materials are also very different. 1) Requirements for material performance of automobile cab parts and components. Most automobile cab parts are cover parts, with complex shapes and complex shapes, but they are not stressed. Using the mold forming process, the forming performance of the material has become the main contradiction. Therefore, The material is required to have formability, tension rigidity, extensibility, dent resistance, corrosion resistance and weldability. In product design, steel plate varieties are usually selected according to the stress and shape complexity of the plate parts. Generally, low-carbon cold-rolled steel sheets and ultra-low-carbon cold-rolled steel sheets with excellent drawing properties are selected. In recent years, phosphorus-containing cold-rolled steel sheets with excellent formability and higher strength, cold-rolled steel sheets with high bowness, cold-rolled dual-phase steel sheets, bake-hardened cold-rolled steel sheets, ultra-low carbon steel, high-strength cold-rolled steel sheets, and others Various types of steel plates, such as coated steel plates, tailor-welded steel plates, and TRIP steel plates, are also widely used in automobile body parts such as door outer panels, door inner panels, door reinforcement panels, roof covers, trunk covers, and bumpers. 2) Requirements for material performance of automobile compartment parts The shape of automobile compartment parts is not too complicated, and most of them adopt roll forming process, which has certain requirements for material formability, rigidity, corrosion resistance and weldability. Generally, high-strength steel plates with better formability and weldability are selected. Generally, high-strength steel plates and ultra-fine grained steel with a strength level of 300-600MPa are used. 3) Requirements for material performance of automobile frame parts. Frames, compartment mid-plates, and some parts used for support and connection are all important load-bearing parts. Most of them use mold forming processes, which require materials to have higher strength and higher strength. Good plasticity, fatigue durability, collision energy absorption capacity and weldability, etc. Generally, high-strength steel plates with better formability, ultra-fine grain steel plates (strength level of 300-610MPa) and ultra-high-strength plates (strength level of 610-1000MPa) are selected. Related news: The characteristics of the main materials of stamping parts, the handling of common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspections