Attaches great importance to the modern auto parts manufacturing with new materials - aluminum, compacted graphite cast iron and various composite materials. Production and manufacturing in particular, the successive application of various new materials, not only the weight of a substantial decline in car use of performance enhancement, but also the ability to CNC machining parts continuously improve energy saving. At the same time, increased competition in the market to car manufacturers to reduce the cost even more urgent. In the premise to ensure processing quality, higher productivity is undoubtedly the best choice to achieve this requirement, and efficient processing and cutting tools to become an effective means to ensure efficient production.

Characteristics of the current cast iron cylinder processing, advanced manufacturing technology more inclined to speed processing. Using CNC high speed machining center, thanks to tens of thousands of rpm spindle speed, with the use of fine-toothed milling cutter, high line speed and large feed, which greatly improved the processing efficiency, automobile engine cylinder block, cylinder head processing is The most typical example. Cylinder block, cylinder head in the plane milling quality requirements are more specific and concrete, including size, surface roughness, flatness, groove depth, out side of the workpiece, burrs, enough to feed speed and cutting power so as small as possible.

Cast iron processing technology through years of practice tests, new solutions emerging. The hands of the current manufacturers have greatly reduced the blank margin, generally 3mm below the cast iron milling also to small margin or even a "near-net size" direction.

Carbide cutting as good and appropriate cost-effective comprehensive, widely used in the automotive industry. The need for efficient processing of the face, the cutting tool material and the structure has a great development. At present, the carbide cutting tools in the material, being the development of new formulations, the introduction of new forming and sintering technology, nanotechnology and ultra-fine powder used to develop both high hardness and toughness of the new direction of carbide cutting tools; in the structure respect, positive sharp cutting edge, low power requirements, high table feed, high surface quality, and wider range of processing, better economic direction.

New Pentagon Face Milling
At present, the development of a new generation of automotive Zhuzhou Diamond pentagonal face milling cutter, the product has a variety of excellent technical performance, not only improved the processing of cast iron cylinder block cutting tools, and can effectively guarantee the quality of the cylinder processing requirements.
1. Good cutting ability to adapt
Different machining cast iron cutting demonstrated ability to adapt different, such as gray cast iron will show its fragility, as a tool cutting edge when the easy out; ductile iron is shown its scalability, when the cutter cut out prone glitch; the most difficult process of emerging in CGI will combine the first two features, performance blade for the easy wear, while easily generate spikes.
The newly developed automobile industry face milling cutter equipped with double-sided pentagon blade slot design, the cutting edge 10 will help improve economy; the same time, open trough structure, cutting edge sharpness, cutting light, making gray cast iron cut out out side when the issue is resolved, but also to avoid burr formation when cutting ductile iron to 67 ° angle of the blade main body with a good ability to cut out; and thickness of the thick Al2O3 + TiCN hard coating and substrate combination, with good anti-spalling. Processing of different materials used different brands of parts, may show a wide range of adaptability.

2. Stable positioning capability
Design of automotive components were often a lot of holes, these holes are usually not the distribution law, therefore, tools for milling at the end of its O'clock usually be size and direction of change over time the impact of changes in load is not the law, especially at the machine tool rigidity and where power is poor, which requires tools to be very stable positioning capability. To this end, we designed a new type of cutter blade support structure pentagon. Optimization provides a powerful way of positioning the resistance, for the elimination of cutting depth of cut and feed direction of the reaction. Cutting, special treatment by the screw will be firmly fixed blade within the blade seat, with carefully designed blade groove, the positioning surface extends to the edge of knives to ensure the main cutting edge to maximize support to greatly increased processing stability. Knife body itself, double negative rake angle, combined with large front corner of the blade, forming a sharp state was essentially cutting edge, not only to meet the requirements of the machine low load, but also ensures that the impact resistance of cutting tool itself. At the same time, high precision knife slots to ensure a high repeat positioning accuracy, there is a strong requirement on the stability of auto parts has great practical significance.

3. Excellent surface finish quality
Auto parts complex shape, the surface of many parts there are some small convex sets, before the processing margin is usually inconsistent, but the requirements for efficient processing of these small convex milling station usually require a place. Routine tool in the same depth of cut good time, but with the changing depth of cut, machined surface quality of large fluctuations occur. To solve this problem, the new pentagon on each cutting blade knives are designed with special wiper. Wiper through special processing, can withstand impact and wear long, stable cutting conditions, and thus changes in the depth of cut can still guarantee stability under the surface processing quality.

4. Easy to store, manage
Many parts automotive industry, the use of different materials, different technical requirements of its different models, different brands and different specifications of the blade, and the huge consumption. At the same time, these blades themselves require different specifications of screws, different briquetting and wrench, which allows manufacturers to require year-round on these blades and accessories to maintain large inventories. The blade storage and management of consumption of a large number of manpower, material, slight mistake, a wrong match will cause an accident. New tools have briquette-style compression with screw-type compression type, screw type briquette type used with the same blade, and the briquette with a double-headed screws and screw-type compression can compress the blades use the same screw wrench, not only types of models to reduce inventory, but also fundamentally optimize their storage capacity, which is one of the trends automotive tool development.

5. Flexible more
Currently, a large number of processing are completed in the processing center, in order to process more flexible, more and more knife disk use. FMD02 provides minimum diameter of 50mm from the beginning of the cutting tool specifications in response to this trend of development. In addition, the capacity to re-design of chip groove, positioning the bottom part of ensuring adequate strength and capacity of space debris.