A detailed analysis of the nine trends of automobile mould.
Summary: at present, the global auto mould industry presents the development trend of nine, i.e., the stamping process of imitation (CAE) effect is more prominence, die mold three-dimensional planning position stably, digital skills has become a main direction of rapid development, mould processing automation, high strength steel plate stamping skills is a development direction in the future, the new mold products launched in the data processing skills with looks, mould will be reuse, deal with the scientific and informatization is the refinement of mould company developing direction, mould manufacturing is the inexorable trend.
At present, the global auto mould industry presents the development trend of nine, i.e., the stamping process of imitation (CAE) effect is more prominence, die mold three-dimensional planning position stably, digital skills has become a main direction of rapid development, mould processing automation, high strength steel plate stamping skills is the future development direction and commodity in season launch, new mould data processing skill will reuse, with looks to handle the scientification and informatization is developing direction of mold company, is the inevitable trend of the fine manufacture.
The simulation of stamping process is becoming more and more prominent.
Over the years, following the agile development of computer software and hardware, the imitation skill of stamping process (CAE) plays an increasingly important role. In the United States, Japan, Germany and other developed countries, CAE skills essential for planning has become the mould making process, it is widely used in speculation forming defects, optimization of stamping and die structure, advancing the reliability of the tooling planning, reducing the test time.
Many domestic car mould companies have made remarkable progress in the application of CAE, and have achieved outstanding effect. The application of CAE skills can greatly save the cost of the test model and shorten the development cycle of stamping die, which has become the primary method to ensure the quality of the mould. CAE skills are gradually transforming the mold planning from experience planning to scientific planning.
The 3d planning position of mold is stable.
The 3d planning of mold is the first part of digital mold skill, which is the foundation of the integration of mold planning, production and inspection. Japan Toyota, general motors and other companies have completed the 3d planning of the mold, and achieved outstanding application. Some of the methods adopted abroad in mold 3d planning are worthy of our study. In addition to facilitating the completion of integrated production, the 3d planning of the mould is also a convenient for dry and inspection, which can be carried out in the field of motion and analysis, which has dealt with a difficult problem in the two-dimensional planning.
Digital mold skill has become a dry flow direction.
It is an effective way to deal with many problems in the development of car mould. The so-called digital mold skill is the application of computer skills or computer assisted skills (CAX) in the process of mold planning and production.
To sum up the successful experience of using computer aided skill in automobile mould companies at home and abroad, digital car mould skills mainly include the following aspects:
The production planning (DFM) can be made to think and analyze the manufacturability while planning to ensure the success of the skills.
The auxiliary skills of the mold surface planning, and develop intelligent surface planning skills.
With the help of the analysis and simulation of the process of stamping process, it is possible to guess and deal with the shortcomings and forming questions.
The three - dimensional mold structure is used to replace the traditional 2d plan.
CAPP, CAM and CAT skills are used in the production process of the mold.
In the process of processing and processing of the process of processing and stamping with digital skills.
The process of mould processing is active and rapid.
The leading processing skills and equipment are the primary base for advancing productivity and ensuring the quality of goods. In the leading car mould company, it is not uncommon to have the CNC machine tool with double table, active changing equipment (ATC), active processing photoelectric control system and workpiece online measurement system. Numerical control machining has been carried out from the pure surface processing to the whole processing of the surface and the construction surface, from medium and low speed processing to high-speed processing, and the processing of active skills is very agile.
High strength sheet metal stamping is the future direction.
Due to the excellent characteristics of high strength steel in the aspect of the strength ratio, strain hardening characteristics, strain distribution ability and bump absorption, the application quantity in the car is continuously added. At present, the high strength steel used in the stamping parts of the car is the first steel (BH steel), dual phase steel (DP steel), phase change induced plastic steel (TRIP steel), etc. World lightweight body project (ULSAB) launched by the leading concept model (ULSAB - AVC) 97% of the data for high strength steel, leading the proportion of high strength steel plate in the vehicle material will surpass 60%, and meanwhile share of dual phase steel will account for 74% of the vehicle plate. Today, many of the selected IF steel-based soft steel series will be replaced by high-strength steel series, and high-strength low-alloy steel will be replaced by dual-phase steel and ultra high strength steel plates.
Now, the domestic car parts more than the use of high strength steel plate shall be limited to the and beam structure, the tensile strength of materials used in less than 500 mpa, thus, agile with high strength steel plate stamping skills is a Chinese car mold profession to deal with a leading question.
New mould products are introduced.
With the development of high efficiency and activeness of car stamping production, the application of progressive die in the production of car stamping parts will become more and more extensive. The shape of the ramming parts, especially the small and medium sized ramming parts with the traditional skill demand of multiple punching die, constantly increase the selection of progressive die forming.
The progressive die is a kind of high and new skill mold commodity, the skill difficulty is big, the production precision request is high, the production cycle is long. The multi-station progressive die will be one of the mould products in China.
Mold data and appearance processing skills will be reused.
The quality and function of mold materials are the primary factors that affect the quality, longevity and cost. Over the years, apart from a variety of high tolerance and high wear resistance cold work die steel, flame quenching cold work die steel, cold work die steel metallurgical powder launch, choose in large and medium-sized stamping mold cast iron materials abroad, is a worthy development trend. Nodular cast iron with excellent strong patience and wear resistance, its welding function, machinability, surface quenching function are also good, and the capital than low alloy cast iron, therefore, to use more in the car stamping die.
The scientific and informatization of processing is the direction of mold company.
Another important aspect of car mould skill development is the scientific and informatization. To deal with the scientific make mould company to make on Time (Just - in - Time Manufacturing) and the direction of the Lean Production (Lean Production), the company to deal with more accurate, a sharp advance Production power, ineffective organization, streamline links and personnel.
Follow modern for skills, many leading informationization in handling tools, contain the company resources to handle the system (ERP), customer relationships (CRM), supply chain (SCM), project (PM), etc., widely used in the mold company.
The refinement of the mold is an inevitable trend.
Refinement of the so-called mould making, is the development process of mold and production results and performance in detail as follows: the rationalization of stamping skills and die structure planning, high precision mould processing, mold products of compactness of high reliability and ability to deal with. Mold refinement is not a single skill, but a summary of planning, processing and handling skills. The finishing of the mold elaboration, besides relying on the skill to elaborate, also rely on close handling to ensure.