With the continuous improvement of the global environmental requirements for energy conservation and emission reduction and the increasingly tightening of fuel consumption policies, lightweight construction is the only way to achieve energy conservation and consumption reduction. How to ensure the strength of the vehicle body while achieving light weight, in order to meet the stringent vehicle crash test and safety requirements, has become the top priority for the OEM. In general, the OEM engineers mainly optimize the configuration of lightweight materials, vehicle structural design and manufacturing processes to achieve lighter vehicle safety. Among them, lightweight die-casting structural parts have become a hot spot in the body manufacturing industry and have attracted extensive attention both inside and outside the industry. On July 19-21, 2017, the 12th China International Die Casting Conference & Exhibition (CHINADIECASTING2017) will be grandly opened at the Shanghai New International Expo Center. The industry's advanced die casting equipment, process and casting technology will be displayed on this platform. .

At this year's Die Casting Show, the Swiss DGS Group's wholly-owned subsidiary in China, Guangzhou Dezhi Metal Products Co., Ltd. (hereinafter referred to as “Guangzhou Dezhi”), is the first domestic die-casting company to mass produce automotive structural parts. One of them stands out from the many die casting exhibitors with its high-quality magnesium die-casting structural parts and exquisite craftsmanship.

As an old European die-casting company with a history of nearly one hundred years, how can Dezhi Guangzhou achieve prosperity? “Our qualifications and capabilities are fully reflected in the satisfaction of customer needs and the deployment of technology and capacity. Being a customer is our basic philosophy.” Song Chengliang, managing director of Guangzhou Dezhi Metal Products Co., Ltd., said in an interview with the Geeze reporter. “We are committed to seeking the best technology, logistics and cost solutions to add value to our customers. A reliable and efficient logistics and quality organization is our fundamental guarantee for achieving sustainable customer satisfaction.”

Three skills to promote automotive die castings

At present, under the trend of lightweight energy-saving and emission-reduction in the automotive industry, lightweight structural parts have become a hot spot in the die-casting industry. Magnesium alloys and aluminum alloys, as representatives of lightweight materials, have become the most suitable materials for casting automotive parts because of their light weight, shock-absorbing and good casting properties, automatic production capability, high mold life, and dimensional stability. Under this market opportunity, Guangzhou Dezhi has provided expertise and experience in producing high-quality die castings using a variety of light alloy materials for more than 80 years, providing aluminum alloy structural parts and complex, compact, thin-walled magnesium alloys to the automotive industry. part.

The Die Casting Show Guangzhou Dezhi showcased the theme of automotive lightweighting and showcased the latest structural products from the factories in Switzerland and Guangzhou. The high-quality aluminum alloys, magnesium alloys and special magnesium alloy die castings for automotive parts are covered. Body, front and rear modules, steering system, dashboard assembly, handbrake and gearshift system.

Application of Guangzhou Dezhi Light Alloy Die Casting in Vehicle

As a domestic high-end die-casting product and solution provider, Guangzhou Dezhi produces die-casting products with advanced die-casting technology, die design and production process that are favored by internationally renowned mainframe manufacturers. In this regard, Mr. Song Chengliang said: "Our production has achieved a high degree of automation. Based on this, we have three major technical features. First, we use a unique mold design to use a relatively small tonnage die casting machine to achieve more economical production; The second is the use of high vacuum die-casting, and based on the rich experience of DGS production of structural parts, with the supplier to design efficient and reliable heat treatment equipment, strictly meet the customer's demand for harsh mechanical properties.Three is a perfect machining and assembly, etc. The process can provide customers with integrated solutions."

Guangzhou Dezhi Fully Automatic Die Casting Workshop

In addition, Mr. Song Chengliang also revealed that this year, Guangzhou Dezhi will introduce an international advanced electronic information management system to achieve automatic monitoring and traceability of the entire process of production of structural parts.

Nearly 100 years of high quality die-casting technology in Switzerland

Founded in 1925, Swiss DGS Group Co., Ltd. is an internationally renowned supplier of light alloy (magnesium alloy and aluminum alloy) die casting solutions and products, especially in the field of automotive structural parts, and it is a global leader. Mainly for the famous car manufacturers such as Volkswagen, DaimlerChrysler Automobile Company production of automotive aluminum, magnesium alloy die castings (of which more than 40% for Audi, BMW, Mercedes-Benz brand cars). In mid-2014, DGS Guangzhou Co., Ltd. supplied bulk automotive structural parts to well-known automobile plants in China and became one of the few die-casting companies in China to mass produce automotive structural parts.

According to Mr. Song Chengliang, the predecessor of the DGS Group was the “Laboratory” established by the Buhler Die Casting Department in Uzwil, Switzerland, in 1925. In 1950, it was relocated to St. Gallen. In 1999, the die-casting factory was taken over by the "Von Roll" Group and operated independently in 2003 through the management buy-out (MBO). Von Noel die-casting company merged with ALUPRESS in the Czech Republic and officially changed its name to DGS Die Casting Systems AG. In 2005, the company began production of automotive structural parts. In 2007, following the major automotive customers established a wholly-owned subsidiary in China, namely Guangzhou Dezhi Metal Products Co., Ltd.

At present, DGS has a total of three production bases in the world, which are located in Switzerland, the Czech Republic and Guangzhou, China. “Guangzhou Dezhi was established in Nansha District of Guangzhou City in 2007. It is a wholly owned subsidiary of DGS Corporation in China. The original intention of the company’s establishment of a plant in China was to meet the local customers’ supply requirements for major customers. In 2013, DGS Corporation The leadership has formulated a clear China development strategy and invested heavily in capacity building and technical capacity building in China's factories.” Mr. Song Chengliang said, “In just 4 years, the Guangzhou company has invested nearly 150 million yuan, and its sales have also increased by almost 10%. Times, mainly for the domestic automobile manufacturers to provide body, front and rear modules, steering system, instrument panel assembly, hand brake and gear system used on aluminum, magnesium alloy die castings."

Customized heat treatment production line

In the past few years, Guangzhou Dezhi has been recognized by customers with impressive performance. Since 2016, the company has expanded its sales and project team, and through more efficient feedback and effective communication, it has established a better and more close relationship with all customers and has been rated as a Class A supplier by many customers. In the field of structural parts, besides Beijing Benz, Guangzhou Dezhi also obtained new projects of FAW Audi. The project is currently progressing smoothly and will be mass-produced in early 2018.

When talking about the reasons for participating in the die-casting exhibition this year, Mr. Song Chengliang expressed that he hopes to introduce high-quality die castings and solutions from Switzerland to Chinese users through this international stage of die casting. “In recent years, due to the large number of projects, we have been immersed in internal management and optimization, and marketing activities have lag behind. This is the main reason why we decided to participate in this year. We hope to show the market to DGS Group and DGS China through this exhibition. The ability and program to greatly enhance DGS's brand awareness.”

Localization innovation goes deep into the development of the automotive market

Technological innovation is the core driving force for the sustainable development of enterprises. Guangzhou Dezhi has an outstanding team of management and technical experts. Its technology in automotive die casting is at the leading level in the world. Always centered on the customer, we innovate our products with professionalism and continuously improve the quality of our products to meet the needs of our customers. Mr. Song Chengliang said: “In 2013, we established the mold design and manufacturing department, and realized the local design and manufacture of almost all molds. It has also become the first domestic European and American die-casting enterprise with independent mold design and manufacturing. Last year, we began to set up R&D. The center will be established this year.At present, the company's mold department has an annual production capacity of more than 60 sets of molds, which not only meets the needs of its own local production, but also exports to Europe."

Mold manufacturing site

As a global supplier of light alloy die-casting structural parts for the automotive industry, Mr. Song Chengliang has his own opinions on the changes in the Chinese automotive market. He said that in 2016, the total growth of the Chinese automobile market was better than expected, and it was a new high, with SUV growth. Still strong. The total sales of passenger vehicles reached 24.3 million, an increase of 14.6% over 2015. In terms of vehicle models, SUVs and MPVs continued to grow at a rapid rate, with an increase of 43.7% and 16.2%, respectively, while the growth of passenger cars was sluggish, only increasing by 2.9%, and micro-customers declined by 37.1%. “In the current domestic market, the competition among foreign automakers has intensified, and the high-end car market is competing against each other. In addition, the pace of advancement in automobile technology has increased, and the trend towards lighter weight continues to advance throughout the industry. Many Internet companies have flooded into the automotive industry, new energy vehicles, and automation. Driving cars and smart cars is moving ahead with unprecedented speed."

Speaking of the development trend of lightweight materials for automobiles in the future, Mr. Song Chengliang said: “From the perspective of energy saving and emission reduction regulations, the overall weight loss of the new generation of car bodies is beyond the general application of aluminum parts in the powertrain field. The demand for new-energy vehicles in terms of cruising mileage has brought new opportunities for parts and components companies that provide lightweight materials.As the lightest material in metal materials, aluminum-magnesium alloys have higher specific strength and better shock absorption performance. The use of high-performance aluminum-magnesium alloy materials in light-weight applications such as body structures, chassis, steering systems, dashboards, battery packs, and interior and exterior trims and motor housings will also become more widespread."

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