A 3-Axis CNC Machining Center/Mill is used for creating various industrial parts. This is achieved by using a wide-range of tooling and cutters depending on the type of material being cut and the end product being manufactured. Vertical Machining Center,Vertical Cnc Machine,Cnc Vertical Machining Center,Vertical Turning Center Jiangsu Hoston Machine Tools Co., Ltd. , https://www.hostoncncs.com
New Express News (Reporter He Jianghua) Recently, Xu Changming, director of the Economic Information Center of the National Information Center, spoke at the Anbang Financial Forum, stating that “the national car sales in 2006 was estimated to be at a level of 6.4 million-6.5 million vehicles, and it could increase by 600,000 last year. Vehicles will also increase by 600,000 vehicles or a little more this year.†This means that China’s auto sales may hit the Japanese market in 2006 and become the global sales runner-up.
In the evaluation of the automotive market last year, Xu Changming said that the development of the auto market in 2005 was relatively positive and healthy, and the overall growth rate was slightly lower than that of the previous year, but it was less obvious.
Xu Changming analyzed the growth of the car this year when he said that passenger cars may grow faster, probably to a level of 17%, and commercial vehicles may be slower. Heavier vehicles are estimated to be an adjustment year, and neither will increase nor decrease because last year. The sales volume has basically recovered to the level of 2003. In 2003, the sales volume of heavy-duty vehicles was 250,000 vehicles, which increased significantly in 2004 to reach 370,000 vehicles. It dropped from 370,000 vehicles to 250,000 vehicles last year. Afterwards, it should be normal to increase at the level of 2003. The combined growth rate of commercial vehicles may be even lower, which is mainly determined by the speed of economic development. The mainstream authoritative agencies predict that this year's economic development rate will be slightly lower than last year, which is about 8.8%, which is a drop of 0.5% from last year. This will directly affect the sales of commercial vehicles.
A 3-axis CNC Mill works on three separate axes:
X-Axis: Moving longitudinally or [left-to-right"
Y-Axis: Moving laterally or [front-to-back"
Z-Axis: Moving Vertically or [up-and-down"
CNC Vertical Machining Centers can include an additional axis to do specific cutting applications.
Rotary Tables are common as a 4th Axis on mills. They can vary in size and weight capacities and can have a horizontal or vertical configuration. They are generally an add-on to a standard 3-axis mill. The mill will have to have a proper 4th axis interface (generally a 4th axis card, drive and CNC Control) to accept a 4th axis rotary table.
Trunnion Tables can also be an add-on to a vertical CNC Mill. A Trunnion table adds a 4th and 5th axis to a standard mill by incorporating an A-Axis (which rotates around the X-Axis) as well as a C-Axis (which rotates around the Z Axis).
A true 5-axis machine can allow for continuous 5-axis machining simultaneously. This increases both speed and accuracy when machining the part.
CNC Vertical Mills generally have a single spindle, automatic tool changer, work table and CNC Control.
The spindle on a CNC Machining Center can have a wide range of speeds depending on what material is being cut and the depth of cut that is required. Typical spindle speed ranges from 0 to 10,000 RPM. Higher speeds are used for lighter materials including graphite and aluminum among others. Higher speeds can reach 12,000 RPM up to 50,000 RPM and higher.
The Spindle is loaded with tool holders and cutters to achieve the proper material removal. There are many different styles of tool holders including BT and CAT – which have a conical shape as well as HSK, which uses flanges instead of a taper to lock the holder in place. BT and CAT Holders can come in various sizes including 30, 40 and 50 taper depending on the size of tool the cutter requires. HSK (Hollow taper ShanK) comes in a variety of types – A through F – and sizes from HSK-32 up to HSK-160. HSK is considered a better tool holder for high speed machining as there is more surface contact between the spindle and the holder, reducing vibration and keeping the tool from pulling back into the receiver when cutting at high speeds.
A CNC Vertical Machining Center offers different styles of automatic tool changers as well. The most common style is the umbrella-style. This is where the tool holders are loaded into the carousel vertically. The other style is a drum or side-mount style. The tools are loaded in horizontally in this type. This allows for greater part height in the work area and can help accommodate a rotary table, fixture or any additional work holding devices mounted to the table.
Xu Changming: China is expected to become the runner-up in global car sales this year