Chinese Injection Mold Making Companies Development Trends
Computer aided engineering (CAE) is more prominent
In recent years, with the rapid development of computer software and hardware, the computer aided engineering (CAE) plays an increasingly important role. In the United States, Japan, Germany and other developed countries, CAE technology has become a necessary part of the injection mold design and manufacturing process and is widely used to predict the forming defects, optimize the stamping process and mold structure. It also improves the reliability and reduces the test time of the mold.
Many Chinese injection mold making companies has also made significant progress in the CAE application, and achieved good results. CAE technology can greatly save the cost of test mode, shorten the development cycle, and has become an important means to ensure injection mold quality. CAE technology is gradually changing the mold design from experience to scientific.
Injection mold 3D designing is consolidated
The 3D designing of the injection mold is an important part of the digital mold technology, which is the basis for the integration mold design, manufacturing and inspection. Japan Toyota, American General and other companies have achieved injection mold 3D design, and achieved good application results. In addition to the benefits of integrated manufacturing, another advantage of 3D mold design is that it facilitates interference checking and motion interference analysis, which solves a difficult problem in 2D design.
Digital molding technology becomes the mainstream
In recent years, the rapid development of digital molding technology offers an effective way to solve many problems in injection mold development. The so-called digital molding technology is the computer technology or computer-aided technology in mold designing and manufacturing.
Summarize China and foreign injection mold manufacturing companies application computer aided technology successful experience, the digital automobile molding technology mainly includes the following aspects:
Advanced processing technology and equipment is the important foundation to improve productivity and ensure product quality. In the advanced China injection mold making companies, CNC machine tools with double workbench, automatic tool changer (ATC), automatic control photoelectric control system and work piece online measurement system are not uncommon. CNC machining has been developed from simple surface processing to the surface and the structural plane of the overall processing, from low-speed processing to the development of high-speed processing. Processing automation technology is developing rapidly.
High-strength steel stamping technology is the future direction of development
High strength steels are used in automobiles because of their excellent properties of yield strength, strain hardening behavior, strain distribution capability and collision energy absorption. At present, the high-strength steel used in automotive stamping parts mainly include bake-hardened steel (BH steel), duplex steel (DP steel), phase-change induced plastic steel (TRIP steel) 97% of the advanced concept models (ULSAB-AVC) introduced by the ULSAB are high-strength steels and the proportion of advanced high-strength steel in the whole vehicle exceeds 60%, of which the proportion of duplex steel Will account for automotive steel plate 74%. Now, a large number of IF steel to the main series of soft steel will be high-strength steel plate series of alternative, high-strength low-alloy steel will be dual-phase steel and ultra-high strength steel plate instead.
At present, the China auto parts of high strength steel plate is also limited to structural parts and beam parts, the tensile strength of materials used in the 500MPa or less, therefore, quickly master the high-strength steel stamping technology is Chinese automotive mold industry to be resolved important questions.
Timely introduction of new injection mold products
With the automotive stamping production efficiency and automation of the development of progressive die in the production of automotive stamping parts will be more widely used. Complex shape parts, particularly small and medium-sized complex stamping parts, use more and more progressive injection mold forming.
Progressive mold is a high-tech product with high technical difficulty, high precision manufacturing and long production cycle. Multi-position progressive mold will be one of the key developments of Chinese molding products.
Injection mold material and surface treatment technology will be reused
The quality and performance of injection mold materials is an important factor affecting mold quality, life and cost. In recent years, in addition to high toughness and high wear resistance cold work die steel, flame quenching cold work die steel, powder metallurgy cold work die steel, the foreign large and medium-sized stamping die cast iron material, is a worth concerned about the development trend. Ductile iron has good strength, toughness and wear-resistance. It has high welding performance, machinability and surface hardening properties, while the cost is lower than alloy cast iron. Therefore, it is more and more applicate in automotive stamping mold.
Scientific management and information technology is the mold enterprise development direction
Another important aspect of the development of injection mold technology is scientific management and information technology. The scientific management of the China injection mold making companies to continue to just-in-time manufacturing and lean production direction, enterprise management more accurate, a substantial increase in productivity, ineffective institutions, links and personnel streamlined.
With the advancement of modern management technology, many advanced information management tools, including enterprise resource management system (ERP), customer relationship management (CRM), supply chain management (SCM), project management (PM) has been widely used.
Precision mold making is an inevitable trend
The so-called precision mold making is the mold development process and manufacturing results in terms of concrete manifestations: stamping process and mold structure design rationalization, high precision molds, mold products, high reliability and technical management Tightness. Precision mold manufacturing is not a single technology, but also the designing, processing and management of a comprehensive reflection of technology. To realize precision mold manufacturing, in addition to rely on technical excellence, it will also be strict management to ensure.
In recent years, with the rapid development of computer software and hardware, the computer aided engineering (CAE) plays an increasingly important role. In the United States, Japan, Germany and other developed countries, CAE technology has become a necessary part of the injection mold design and manufacturing process and is widely used to predict the forming defects, optimize the stamping process and mold structure. It also improves the reliability and reduces the test time of the mold.
Many Chinese injection mold making companies has also made significant progress in the CAE application, and achieved good results. CAE technology can greatly save the cost of test mode, shorten the development cycle, and has become an important means to ensure injection mold quality. CAE technology is gradually changing the mold design from experience to scientific.
Injection mold 3D designing is consolidated
The 3D designing of the injection mold is an important part of the digital mold technology, which is the basis for the integration mold design, manufacturing and inspection. Japan Toyota, American General and other companies have achieved injection mold 3D design, and achieved good application results. In addition to the benefits of integrated manufacturing, another advantage of 3D mold design is that it facilitates interference checking and motion interference analysis, which solves a difficult problem in 2D design.
Digital molding technology becomes the mainstream
In recent years, the rapid development of digital molding technology offers an effective way to solve many problems in injection mold development. The so-called digital molding technology is the computer technology or computer-aided technology in mold designing and manufacturing.
Summarize China and foreign injection mold manufacturing companies application computer aided technology successful experience, the digital automobile molding technology mainly includes the following aspects:
- Design for manufacturing (DFM), that is, in the design and analysis to consider the manufacturability, to ensure the success of the process.
- Mold surface designing auxiliary technology, the development of intelligent surface designing technology.
- CAE assisted analysis and simulation of stamping process, predict and solve possible defects and forming problems.
- Use 3D mold design to replace the traditional 2D design.
- Mold manufacturing process using CAPP, CAM and CAT technology.
- Under the guidance of digital technology to solve the trial mode stamping process and the problems in production.
Advanced processing technology and equipment is the important foundation to improve productivity and ensure product quality. In the advanced China injection mold making companies, CNC machine tools with double workbench, automatic tool changer (ATC), automatic control photoelectric control system and work piece online measurement system are not uncommon. CNC machining has been developed from simple surface processing to the surface and the structural plane of the overall processing, from low-speed processing to the development of high-speed processing. Processing automation technology is developing rapidly.
High-strength steel stamping technology is the future direction of development
High strength steels are used in automobiles because of their excellent properties of yield strength, strain hardening behavior, strain distribution capability and collision energy absorption. At present, the high-strength steel used in automotive stamping parts mainly include bake-hardened steel (BH steel), duplex steel (DP steel), phase-change induced plastic steel (TRIP steel) 97% of the advanced concept models (ULSAB-AVC) introduced by the ULSAB are high-strength steels and the proportion of advanced high-strength steel in the whole vehicle exceeds 60%, of which the proportion of duplex steel Will account for automotive steel plate 74%. Now, a large number of IF steel to the main series of soft steel will be high-strength steel plate series of alternative, high-strength low-alloy steel will be dual-phase steel and ultra-high strength steel plate instead.
At present, the China auto parts of high strength steel plate is also limited to structural parts and beam parts, the tensile strength of materials used in the 500MPa or less, therefore, quickly master the high-strength steel stamping technology is Chinese automotive mold industry to be resolved important questions.
Timely introduction of new injection mold products
With the automotive stamping production efficiency and automation of the development of progressive die in the production of automotive stamping parts will be more widely used. Complex shape parts, particularly small and medium-sized complex stamping parts, use more and more progressive injection mold forming.
Progressive mold is a high-tech product with high technical difficulty, high precision manufacturing and long production cycle. Multi-position progressive mold will be one of the key developments of Chinese molding products.
Injection mold material and surface treatment technology will be reused
The quality and performance of injection mold materials is an important factor affecting mold quality, life and cost. In recent years, in addition to high toughness and high wear resistance cold work die steel, flame quenching cold work die steel, powder metallurgy cold work die steel, the foreign large and medium-sized stamping die cast iron material, is a worth concerned about the development trend. Ductile iron has good strength, toughness and wear-resistance. It has high welding performance, machinability and surface hardening properties, while the cost is lower than alloy cast iron. Therefore, it is more and more applicate in automotive stamping mold.
Scientific management and information technology is the mold enterprise development direction
Another important aspect of the development of injection mold technology is scientific management and information technology. The scientific management of the China injection mold making companies to continue to just-in-time manufacturing and lean production direction, enterprise management more accurate, a substantial increase in productivity, ineffective institutions, links and personnel streamlined.
With the advancement of modern management technology, many advanced information management tools, including enterprise resource management system (ERP), customer relationship management (CRM), supply chain management (SCM), project management (PM) has been widely used.
Precision mold making is an inevitable trend
The so-called precision mold making is the mold development process and manufacturing results in terms of concrete manifestations: stamping process and mold structure design rationalization, high precision molds, mold products, high reliability and technical management Tightness. Precision mold manufacturing is not a single technology, but also the designing, processing and management of a comprehensive reflection of technology. To realize precision mold manufacturing, in addition to rely on technical excellence, it will also be strict management to ensure.