Automotive and transportation

Chery Automobile Quality drives Chinese automaker; on route to creating a world-famous name Product Tecnomatix Tecnomatix software helps years, the company is now on its way to Business challenges diagnose and reduce creating a world-famous name. Improve product quality design quality defects, Chery currently owns four brands: Chery, Reduce production and achieving significant savings , Rely and . Its product line maintenance costs for each problem found prior includes passenger vehicles, commercial Expand brand image; to manufacturing vehicles and mini . Chery presently strengthen competitiveness has the capability to produce 900,000 in the global market China, then the world vehicles and engines, and 400,000 gear- Chery Automobile Co., Ltd. (“Chery”) was boxes per year. Keys to success founded in 1997 by five state-owned Dimensional analysis Dimensional tolerance investment companies with an initial analysis software that capitalization of RMB 3.2 billion (nearly Quality, which is closely linked to product simulates manufacturing and US$500 million). Plant construction performance, reliability, comfort, styling assembly processes commenced in 1997 and the first came and the customer’s purchasing decision, is off the production line on December 18, at the core of Chery’s competitiveness. Tecnomatix data in 1999. In August, 2007, the company’s The company holds ISO 9001 and Rhine’s lightweight JT format one-millionth car rolled out, signifying ISO/TS16949 certifications. In recent years, Siemens’ extensive Chery’s success in building an independent it has initiated other quality control knowledge of dimensional Chinese brand. As China’s number-one procedures, including the establishment of management and expertise passenger vehicle exporter for seven standards, strict project controls and new in implementation

Results Complete vehicle dimensional analysis helps meet the com- pany’s product quality targets Production problems identified early in the product development cycle

www.siemens.com/tecnomatix Results (continued) Increased vehicle and process optimization Avoided errors, eliminating rework time and costs ($150,000 saved on one mold)

testing equipment and methods. To technical specifications, and ultimately specifically address product quality, Chery suggest how to optimize these factors to has implemented: 1) structural analysis, enhance the quality of body design.” process assessments, product and process design evaluation, and complete vehicle Chery’s first dimensional analysis method testing during the R&D stage; 2) process was based on the 2D dimensional chain review and control at the design phase; calculations, which can be inaccurate and and 3) the use of multiple testing meth- do not work well for complex products ods, data analysis, and feedback at the such as automobiles. That led them to look production stage. for a better method, which turned out to be Tecnomatix® software with its Variation Dimensional analysis is one of the Analysis (VSA) component, a powerful advanced concepts Chery implemented dimensional analysis tool used to simulate after seeing how valuable this practice has manufacturing and assembly processes been to automobile assembly plants in and predict the amounts and causes of developed countries. “A dimensional variation. engineering team can help improve the quality of the car body,” says Wu, Shiqiang, “After evaluating a number of possibilities, director, Process Technology Department, we were impressed by the powerful func- Engineering Planning and Design Institute I tionality of Tecnomatix, as well as by the at Chery. “At the initial design stage, they fact that Siemens has an engineering team can analyze whether the structure, posi- in North America dedicated to dimensional tioning and assembly methods meet analysis,” says Shiqiang. “We were also aware that Siemens has been collaborating with Ford over the years and we believed that they could provide us with valuable assistance. Those are the reasons we chose “We were impressed by the Tecnomatix.”

powerful functionality of Predicting problems before they happen Chery uses Tecnomatix Variation Analysis software for manufacturing and assembly Tecnomatix.” workflow simulations. The software per- Wu Shiqiang forms the assembly process and builds the Director dimensional chain for the product virtually. Process Technology Department Using the Monte Carlo principle, it deter- Engineering Planning & Design Institute I mines post-assembly dimensional errors Chery Automobile Co., Ltd. and analyzes the factors causing the errors. “By using the JT format, Tecnomatix reduces memory requirements by approximately 70 percent, speeding up the response of the system.”

Wu Shiqiang Director Process Technology Department Engineering Planning & Design Institute I Chery Automobile Co., Ltd.

“This lets us assess and optimize the “By using the JT format, Tecnomatix “We were impressed by the product design, configure part tolerance, reduces memory requirements by approx- powerful functionality of improve the positioning and assembly imately 70 percent, speeding up the Tecnomatix, as well as by the processes, and manage and take control response of the system.” fact that Siemens has an of downstream manufacturing errors,” engineering team in North says Shiqiang. “From the beginning, we have had an America dedicated to ambitious plan for quality improvement, dimensional analysis.” Tecnomatix is a 3D simulation system. It including complete vehicle dimensional Wu Shiqiang creates a 3D model that includes tolerance analysis similar to what is done in North Director distributions of parts and components, America,” says Wu. “Since implementing Process Technology Department installation and positioning methods, the Tecnomatix, we have gradually established Engineering Planning & Design assembly sequence, fixing methods, a comprehensive dimensional engineering Institute I accuracy requirements, and measurement process beginning with preliminary bench- Chery Automobile Co., Ltd. plans and methods. It offers simulation mark analyses and the definition of a analysis results that closely reflect actual dimensional technical specification, assembly conditions for complex shapes through to 3D virtual assembly and simula- and relationships. An important factor tion, and quality control.” The dimensional in the success of Tecnomatix in this engineering team is mainly responsible for application is that the software uses the dimensional analysis and quality control lightweight JT™ data format. “The quantity work for entire new vehicles, but also of data needed to represent a complete works on changes made to existing vehicle is very large,” explains Shiqiang. models. Solutions/Services Savings add up Tecnomatix The implementation of Tecnomatix www.siemens.com/tecnomatix Variation Analysis software and synchro- nized dimensional engineering JT significantly enhances Chery’s ability to www.siemens.com/ predict problems prior to production. For plmcomponents example, an assembly issue with one vehicle’s headlights was found during the Customer’s primary business analysis. Fixing the problem in software Chery Automobile Co., Ltd. before molds were made spared the projects and has established a collabora- is China’s largest independent company the 1 million Yuan (around tion mechanism between product design manufacturer of passenger US$150,000) cost to modify a mold. “And and process planning. The Tecnomatix cars. of course, this also eliminated delay in solution has enabled the company to www.cheryinternational.com manufacturing,” says Shiqiang. analyze, assess and optimize vehicles in a systematic manner. “The idea is to solve Dimensional engineering provides a qual- problems in the early stages and minimize Customer location ity management collaboration platform for the waste of time and money,” says , Province engineers of different departments within Shiqiang. To date, dimensional engineer- China Chery, including product design, engineer- ing has been used for Chery’s ing, manufacturing, fixture development, medium-to-high class vehicles. In the quality inspection, and quality control. So future, the company plans to expand its far, Chery has performed complete vehicle use to all vehicle models. dimensional analysis for a number of

The implementation of Tecnomatix Variation Analysis software...significantly enhances Chery’s ability to predict problems prior to production.

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