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Summary:
With the development of China's auto industry, automotive technology updates, and energy-saving and emission reduction requirements, the application of extruded aluminum in automobiles has been developed.
First, the application of automotive extruded aluminum (deformed aluminum alloy) and the physical and chemical properties of common alloys are introduced.
Third, in order to meet the requirements of the automotive industry, aluminum extrusion companies need to have those capabilities, and emphasize process control, statistical analysis (SPC), potential failure modes and consequences analysis (FMEA), technology development, and continuous improvement.
This is followed by the introduction of automotive extrusion aluminum manufacturers.
Keywords: precision aluminum tube; automotive aluminum; deformed aluminum alloy; aluminum extrusion; Wuxi Hite Aluminum
Extrusion aluminium companies are developing along with China automotive industry emerging which require new technical create, energy save and emission reduce.
It's a brief introduction of the applications of extrusion aluminium (wrought
Aluminium alloy) in automotive. List the main automotive aluminium alloy of mechanical properties and chemical compositions.
What ability shall be prepared to provide automotive aluminum to focus the requirement from car makers? Point out the process control, SPC, FMEA, R&D and Kaizan(KCI).
Excellent automotive aluminum manufacturer introduced at last.
KEYWORDS: Automotive extrusion aluminium, Wrought aluminium alloy, Precision drawn aluminium tube, Extrusion aluminium, Wuxi Hatal aluminium co., ltd.
Aluminum alloys have been widely used in automobiles. Extrusion aluminum alloys for automobiles are mainly used in heat exchange systems and body systems. With the renewal of technology and energy-saving and emission-reduction requirements, automotive components such as damping systems, braking systems, and steering control systems are also gradually adopting extruded aluminum materials.
1. The basic characteristics of extruded aluminum alloys:
-Good processing performance
- Good welding performance
- Good physicalproperty
- Good thermal conductivity, electrical conductivity Goodthermalandelectricalconductivities
- Good corrosion resistance Goodcorrosionresistance
- Good environmental friendliness Goodenvironmentfriendly
2. Application of aluminum extrusion materials in automobiles:
2.1 Extrusion Aluminium Alloy Heat Exchange System for Heat Exchange System Due to corrosion resistance, bendability, weldability, etc., Series 3 3003, 5 Series 5052, 6 Series 6063 are fully utilized. Due to the high dimensional accuracy, high mechanical properties, compactness of the alloy, and high grades of crystal grains, it is necessary to use hot extrusion, cold drawing, and related heat treatment to obtain high-quality precision aluminum tubes.
2.2 Automobile brake system, vibration damping system, steering control system, refrigeration system, etc. Mechanical precision machining of aluminum parts Automotive parts involve a variety of alloy materials, widely used in steering systems, brake systems, steering systems, refrigeration systems, commonly used alloys Mechanical properties are shown in Table 4.
3. Automotive aluminum requirements for companies
The automotive industry has developed rapidly in China. In 2009, it became a manufacturing powerhouse with a vehicle output exceeding 10 million. The demand for automotive aluminum extrusion, multi-alloy varieties, multiple product specifications, timely delivery, stable product quality and continuous improvement, Strict requirements are imposed on material suppliers in their supply chain:
3.1 The company must pass the certification of ISO/TS16949 quality management system. The auto industry has a complete quality supply specification. It is based on summarizing the requirements of the automobile industry and requirements of automobile manufacturers and associations in various countries. The International Automotive Task Force (IATF) Three European norms VDA6.1 (Germany),
AVSQ (Italy), EQQF (France) and North America QS-9000 were integrated, combined with ISO9000 standards, and jointly developed with the Japan Manufacturing Association, the automotive industry quality management system ISO/TS16949:2002, which is the international automotive industry Technical specifications.
In order to become a supplier of automotive aluminum materials, aluminum extrusion companies must pass this quality management system certification.
3.2 The automotive aluminum company must meet the customer's requirements for product quality and continue to improve the analysis of the process capability to achieve this product quality.
3.2.1 Key Processes and Flow Charts for Extruded Aluminum Alloys Raw Material Procurement Process, Purchase Control Process, Melting Process, Extrusion Process, Heat Treatment, Cold-drawing Process, Packaging Process, Inspection Process, Transportation Process, etc.
3.2.2 Attachment extrusion process flow chart Table 5
3.2.3 Automotive aluminum companies must perform process capability analysis on all processes. They must make full use of statistical techniques (SPC) to control the process. They must continue to pay attention to the control of process characteristics and process parameter variations during the process, reduce and Prevent the occurrence of defects, reduce waste and reduce quality costs. The value of process Cpk is not less than 1.33, and should be confirmed by the customer.
3.3 Automotive aluminum companies not only provide qualified products, but also require “zero defects†in the process.
3.3.1 In order to ensure the safety and reliability of products and services, companies must use the potential failure mode and consequences analysis (FMEA) method to identify the potential causes of defects and determine the severity and frequency of defects. Degree and detectability.
3.3.2 Potential Failure Modes and Consequences Analysis of the Extrusion Process Table 6 (see Appendix 1)
3.3.3 FEMA is not immutable. It is also a process of continuous improvement. It needs aluminum extrusion companies for automobiles to continuously improve on customer demand.
3.4 Automotive aluminum extrusion companies should use statistical techniques to control the process (SPC), measurement system analysis and other tools to ensure that the product meets customer requirements, and have the ability to work with customers to participate in advanced product quality design planning (APQP) and production parts approval Process (PPAP).
3.5 In addition to the above-mentioned quality process control, the auto industry has to optimize the chemical composition, surface quality, dimensions, and mechanical properties of the supplied components and aluminum extrusion materials, and must fully meet the customer's technical standards.
3.5.1 Automotive aluminum extrusion companies shall control the internal microstructure of extruded aluminum materials and analyze the impact on the macroscopic properties of the materials. To meet the performance requirements of customers, the required aluminum alloy grain structure, organizational characteristics, composition segregation, hydrogen content levels. Macroscopically, defects such as pores, cracks, delamination, and non-metal slag inclusions are not allowed, and the coarse-grained rings and dimensional accuracy are strictly limited.
3.5.2 Processes for the processing companies to implement the products are strictly controlled, and the delivery from raw materials and auxiliary materials to the products must be effectively controlled and prevented. Quality control and inspection of various raw material suppliers such as important aluminum ingots, magnesium ingots, zinc ingots, master alloys, and additives; and require suppliers to pass ISO9002 quality certification.
4. Introduction of Domestic Professional Automotive Aluminum Extrusion Materials
Wuxi Haite Aluminum Co., Ltd. was established in 1990 and is a Sino-foreign joint venture specialized in the processing of automotive extruded aluminum alloy products.
Wuxi Haite Aluminum is a leader in precision aluminum tubes for China's automotive heat exchange system and has been leading the development of this industry. At present, it is a qualified supplier of qualified aluminum extrusion materials for the world's leading automotive manufacturers such as Volkswagen, General Motors, Mercedes-Benz, Ford, Citroen, Peugeot, Toyota, Honda and others.
The company mainly produces aluminum tubes and profiles for automotive heat exchange systems, bar materials for automotive safety systems, pipe profiles for automotive shock absorber systems, and bar materials for automotive brake systems. Annual production capacity is 15,000 tons. The company has world-class casting technology and domestic first-aluminum extrusion technology, new testing equipment, strict process regulations, complete training system and quality assurance system to ensure product quality fully meet the requirements of domestic and foreign customers, and the domestic car With the quality of aluminum tubes, rods, and profiles to the level of world-class products.
The company has passed the ISO/TS16949:2002 quality system certification and the certification company is Germany DQS. The product market areas are the domestic market and the Asia Pacific region.
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