2. The mold three-dimensional planning status to be stable
The three-dimensional planning of the mould is the primary content of the digitized mould skill, and is the foundation of the integration of mould planning, production and inspection. Japan Toyota, the United States and other companies have completed the three-dimensional planning of the mold, and has made outstanding use of the role. Some of the methods adopted in the three-dimensional planning of the mould abroad are worth studying. In addition to the three-dimensional planning is conducive to the completion of the integration of the production, another advantage is easy to dry and check, can be carried out by the movement and analysis, processing of a two-dimensional planning problems.
3. Digital mold skills have become mainstream direction
The digital tooling skills developed in the past years are an effective way to deal with many questions in the development of car moulds. The so-called digital mold skills, that is, computer skills or computer assisted skills (CAX) in the process of mold planning and production of the application.
Summing up the successful experience of using computer aided skills in automobile mould company at home and abroad, the skills of digital car mould mainly include the following:
① can make planning (DFM), that is, thinking and analyzing the usability in planning to ensure the success of the skills.
② Mold Surface Planning assistant skills, develop intelligent surface planning skills.
③CAE assists in the analysis and simulation of stamping forming skills processes, guessing and handling may present defects and forming doubts.
④ replaces the traditional two-dimensional programming with three-dimensional mould structure planning.
Capp, Cam and cat skills are used in the process of making ⑤ molds.
⑥ in the process of processing and stamping production under the guidance of digitized skills.
4. Mold Processing Initiative rapid development
Leading processing skills and equipment are the primary basis for advancing productivity and ensuring quality of goods. In the leading car mould company, it is not uncommon for CNC machine tools with double worktable, active tool-changing equipment (ATC), photoelectric control system of active machining, and online measurement system of workpiece. CNC Machining has been carried out by the simple surface processing to the surface and the structural surface of all processing, from medium and low speed processing to high-speed processing, processing of active skills to carry out very agile.
5. High strength steel stamping skill is the future direction
High-strength steel has excellent characteristics in Cuchamby, strain-hardening characteristics, strain distribution and bump-absorbing energy, and the application of the car is added continuously. At present, the high strength steel used on the stamping parts of the car is the first to have the baking-hardened steel (BH steel), duplex-phase steel (DP-steel), phase change induced plastic steel (trip steel) and so on. The World Super Light Body Project (ULSAB) launched the leading concept model (ULSAB-AVC) of 97% of the data for High-strength Steel, the leading high-strength steel plate in the whole vehicle will exceed 60% of the proportion, while the dual-phase steel will account for the share of the car steel plate 74%. Today, a lot of the selection of if steel mainly soft steel series will be replaced by HIGH-STRENGTH steel plate series, high-strength Low-alloy Steel will be dual-phase steels and ultra-high-strength steel replacement. Now, domestic car parts HIGH-STRENGTH steel plate is more limited to the use of structural parts and beams, the tensile strength of the data is more than 500MPa, thus, agile grasp of high-strength steel stamping skills, is China's car mold profession to deal with the most urgent question.
6. New Mold Products when the order launched
With the development of high efficiency and initiative of car stamping, the progressive die will be widely used in the production of stamping parts of cars. The shape of the messy stamping parts, especially some of the traditional technical requirements of the multiple-order punching die of the small and medium-sized disorderly stamping parts, increasing the use of progressive die forming.
Progressive die is a High-tech mold products, skills difficult, production precision request high, production cycle long. Multi-position progressive die will be one of the key products in China.
7. Tooling data and external processing skills will be reused
The quality and function of the mould data are the primary factors that affect the quality, the stature and the cost. These years, in addition to a variety of high tolerance and high wear-resistant cold as die steel, flame quenching cold die steel, powder metallurgy cold die Steel, the introduction of the foreign in large and medium-sized stamping die on the use of iron materials, is a trend worthy of attention. Ductile iron has outstanding strong endurance and wear resistance, its welding function, machinability, external quenching function is also good, and cost ratio alloy cast iron low, thus, in the car stamping die used more.
8. The process of scientific and information is the mold company to carry out the direction
Another important aspect of the development of the car mould skill is the scientific and informatization of the process. The scientific management of the mold company to make continuous production (just-in-timemanufacturing) and lean Production (leanproduction) direction, the company more accurate, the production power of a large advance, ineffective organization, links and staff continue to streamline.
With the advance of modern processing skills, many leading information processing tools, including the company's resource management System (ERP), Customer relationship processing (CRM), Supply chain processing (SCM), Project Management (PM), etc., in the mold company has been widely used.
9. The precision of the mold production is the inevitable trend
The so-called mold fine production, is to the mold development process and the production result is in terms of, the detailed performance is: the stamping skill and the mold structure plan rationalization, the mold processing high accuracy, the mold commodity high reliability and the skill handling tightness. Mold refinement is not a single skill, but a summary of planning, processing and handling skills. The completion of fine mold production, in addition to rely on the skills of Sen, but also rely on close processing to ensure.
