Talking about the Development Direction of China's High-end CNC Machine Tools


Since 2002, China has become the world's largest machine tool consumer. In 2010, the total machine tool consumption of the world's 28 major machine tool manufacturing countries was 59.89 billion US dollars, accounting for 45.6% of China's consumption. As the quality and intrinsic performance of domestic machine tools can not meet the needs of users, it is still in the unfavorable situation of “low-end melee, high-end fall”, leading to the sudden increase in machine tool imports in recent years. In the first half of 2011, China's imports of gold-cutting machine tools 5.01 billion US dollars, an increase of 58.3%. The current high-precision product market is occupied by Western developed countries.

In the past decade, the development of the machine tool industry relied more on sustained strong domestic market demand, relatively cheap labor cost advantages, and strong support from the national industrial policy. Enterprises rely on policy-based natural growth; in comparison, technological progress The role of management upgrades is relatively limited. According to Luo Baihui, the secretary-general of the International Model Association, at present, from the perspective of the machine tool structure and overall parameters, there is little difference between Chinese and foreign companies in the high-end CNC machine tools, and the homogenization competition is fierce. The market competition of mid- to high-end machine tools has developed into a comprehensive competition between product technology level and business management capabilities. Ordinary machine tools have become maintenance tools in industrialized countries such as Europe, America and Japan. Their application has gradually changed from large industrial production to rough machining and workshop spare parts maintenance. Economical CNC machine tools are unique to China and are upgraded products of ordinary machine tools. Market capacity limited. Affected by the national conditions, the demand for ordinary machine tools and economical CNC will exist for a long time, but the product life cycle will gradually enter the recession period. During the “Twelfth Five-Year Plan” period, the development of medium-to-high-end CNC machine tools is the key point of the work in the machine tool industry. Undoubtedly, the transformation of enterprises, the development mode that is mainly based on scale expansion, and the development of medium and high-end CNC machine tools will be the main challenges for the company in the future. direction.

Stamping is a kind of process that obtaining the required shape and size of the parts by outside force on the metal sheet, strip, pipe shape material use mould and press machine, in order to produce plastic deformation or separation. Stamping and forging belong to plastic processing (or pressure processing), called the forging press. The mainly stamping billets are hot rolling and cold rolling steel plate and steel belt.

Stamping processing is a production technology that use of conventional or special equipment of the power, make the deformation sheet metal deformation in the mould. Thereby produce a certain shape, size and performance parts. Sheet metal, stamping mould and equipment are the three elements of stamping.

Stamping characteristics:

Compared with the castings, forgings, stamping parts have the thin, uniform, light and strong characteristic. Stamping can make other methods are difficult to manufacture, such as rib stiffener, flanging, ups and downs, or flanging products, in order to improve its stiffness. Because use precision mould, the precision of part can reach micron grade, and repeat precision is high, the specification is consistent, can punch a hole nest, convex sets, etc. Cold stamping generally no longer by machining, or only need a small amount of machining. Hot stamping precision and surface state is lower than the cold stamping parts, but it's still better than the castings, forgings, less cutting processing capacity.

The Advantage of stamping:

(1) The stamping process is high production efficiency, and easy to operate, easy to realize mechanization and automation.
(2) The mould ensure the stamping precision of the size and shape when stamping, and generally does not destroy the surface of the quality of stamping parts , and the life of the mould are long, so the stamping quality is stable, has the characteristics of "the same".
(3) The stamping can produce the part that size range is larger, more complex shape parts, such as small to stopwatch of watch, big to Auto longeron, cover parts, etc., and stamping material hardening effect of cold deformation, the strength and stiffness of stamping is high.
(4) Stamping generally has no chip broken material, material consumption is less, and do not need other heating equipment, it is a kind of machining method that material saving, energy saving, stamping parts cost is low.

The process classification of stamping:

Stamping is mainly classification by process, can be divided into separation process and forming process. Separation process is also called the blanking, and its purpose is to make the sheet metal of stamping parts separated along the contour line, and at the same time guarantee the quality of the separation section requirements. Forming process is designed to make sheet metal occurred plastic deformation under the condition of not to break the billet, made into the required shape and size of parts. In the actual production, it is often a variety processes integrated applied to one part. Cutting, bending, shear, deep drawing, bulging, spinning, correction are the main stamping processes.

The conventional material of stamping part: Aluminum sheet like 6061,6063, stee alloy sheet like Q235, ST37-2, Stainless steel sheet like SS304,SS316;

The precision of the stamping part: ±0.1mm;

The thickness of the metal sheet we can do: 0.5mm~12mm;

The max size of the stamping part in my factory: 1mX1m;

Surface preparation methods: Powder coating, Painting, Plating, Electrophoresis, Polishing.

The Metal stamping and QC control equipment

metal stamping part prodction

Metal Stamping Part

Metal Stamping Parts, Precision Metal Stamped Parts, Steel Stamping Parts, Stainless Steel Stamping Parts, Aluminum Stamping Part