At present, the global automotive mold industry presents nine major trends, namely: the stamping process of the imitation effect is more prominent, the mold three-dimensional planning to stabilize the location, digital mold technology has become the mainstream direction of the rapid development of automated mold processing, high-strength steel stamping skills Is the future direction of development, the new mold commodity was launched, the mold information and appearance processing skills will be reused, scientific and informatization is the development direction of the mold company, the fine mold manufacturing is an inevitable trend.
Stamping process of imitation (CAE) the role of the more prominent
In recent years, with the rapid development of computer software and hardware, the CAE of stamping process plays an increasingly important role.In the developed countries such as the United States, Japan and Germany, CAE skills have become necessary for the process of mold planning Links, widely used to guess the shortcomings of forming, optimization of stamping skills and mold construction, advance the reliability of mold planning, reducing the test mode moment.
Many car mold companies in China have made significant progress in the use of CAE, has been an outstanding role. CAE skills can greatly save the cost of test molds, shorten the development cycle of stamping dies, mold quality has become the primary means to ensure that CAE skills are gradually transforming mold planning from experience planning into science planning.
Mold three-dimensional planning status to be solid
Three-dimensional mold planning is the primary content of digital mold skills, is to complete the mold planning, production and testing integration foundation. Japan's Toyota, the United States General Motors and other companies have completed the mold three-dimensional planning, and achieved outstanding use of the role. Three-dimensional planning of the mold to take some of the practices deserved to learn.Mathematic 3D planning in addition to facilitate the completion of integrated production, another advantage is that it is easy to dry and inspection, exercise and analysis can be dry, the two-dimensional planning to deal with a problem .
Digital mold technology has become the mainstream direction
Getting agile digital mold skills in these years is an effective way to deal with many of the challenges faced in the development of car molds, the so-called digital mold skills, that is, the use of computer skills or computer-assisted skills (CAX) in the process of making mold plans Die people up micro letter: mujudaren
Summary domestic and international car mold company using computer-assisted skills, the successful experience of digital car mold skills mainly include the following aspects:
① Productive Planning (DFM), that is, planning and analysis of producibility, to ensure the success of skills.
② mold surface planning assistant skills to carry out intelligent planning skills.
③CAE help analyze and simulate the skills of stamping forming process, guess and deal with the shortcomings and forming doubt may be presented.
④ three-dimensional mold construction planning instead of the traditional two-dimensional planning.
⑤ mold making process using CAPP, CAM and CAT skills.
⑥ under the guidance of the number of skills to deal with the mold test process and stamping production presented in doubt.
Mold processing actively carried out rapidly
Leading machining skills and equipping are the cornerstone of advancing productivity and ensuring the quality of your products. Among the leading sedan mold companies, CNC machines with dual tables, active tool changers (ATCs), optoelectronic control systems for active machining, Online measurement system is not uncommon.Numerical processing has been carried out by a simple surface processing to the profile and the construction of all the processing, from low to medium-speed processing to high-speed processing, processing automation technology is very agile.
High-strength steel stamping skills in the future direction
High-strength steel due to the excellent performance in yield strength ratio, strain hardening properties, strain distribution ability and bump absorption energy, the continued increase in the use of the car.Now, the high-strength steel used in the car stamping parts first and foremost BH steel, DP steel, TRIP steel, etc. 97% of the leading concept vehicles (ULSAB-AVC) from the World Ultra-light Body Program (ULSAB) High-strength steel, the leading high-strength steel in the proportion of vehicle materials will exceed 60%, while the share of dual-phase steel will account for 74% of the steel plate.Nowadays, many of the options to IF steel-based mild steel series Will be replaced by high-strength steel series, high-strength low-alloy steel will be dual-phase steel and ultra-high strength steel instead.
Now, the use of high-strength steel parts of domestic car parts is still mostly limited to the construction parts and beam parts, the tensile strength of the materials used in more than 500MPa, therefore, agile grasp of high-strength steel stamping skills, China's car mold industry urgently need to deal with one The first question.
New mold products launched
With the production of car stamping efficient and proactive, progressive die in the production of car stamping parts will be more widely used. Messy parts of the shape, in particular, according to the traditional skills required by the Deputy Vice-punching small and medium-sized Messy stamping parts, increasing the use of progressive die forming.
Progressive die is a kind of high-tech mold products, which is difficult in technology, high in precision and long in production cycle. The multi-position progressive die will be one of the mold products developed in China.
Mold information and appearance processing skills will be reused
The quality and function of the mold information is the primary factor that affects the mold quality, life and cost.In these years, in addition to continuously have a variety of high resistance and high wear resistance cold work die steel, flame quenching cold work die steel, powder metallurgy cold work Die and steel introduced, the selection of cast iron materials in medium and large stamping die abroad, is a development trend worthy of attention. Ductile iron with outstanding resistance and wear resistance, the welding function, machinability, the appearance of quenching function are also more Well, and the cost is lower than the alloy cast iron, therefore, used more in the car stamping die.
Handling scientific and information is the mold company to carry out the direction
Car mold technology to carry out another primary aspect of the scientific and information management.Scientific management of the mold company to continue to make (Just-in-TimeManufacturing) and lean production (LeanProduction) direction, the company handle more and more Accurate, production power substantially forward, invalid organizations, links and personnel continue to streamline.
With the progress of modern management skills, many of the leading information processing tools, including ERP, CRM, SCM, PM, etc., are obtained by the mold company used widely.
Fine mold production is an inevitable trend
The so-called mold refinement is the mold development process and the production of results, in detail as follows: stamping skills and mold structure planning rationalization, high precision molds, molds, high reliability of products and skills for Tightness.Micro-precision mold production was not originally a single skill, but the planning, processing and processing skills summarized induction .Micro meticulous production of the completion, in addition to skillfully carved, but also by close handling To guarantee.