The production efficiency of metal spinning is the key for spinning factories to increase profits. While ensuring the quality of spinning products, how to increase the spinning processing speed is an important aspect that spinning workers need to consider. This article introduces some important factors that affect the spinning processing speed and production efficiency, mainly including spindle speed, feed speed, tool path adjustment, cutter, and raw material positioning method and tail hydraulic cylinder positioning.

1. Using the center hole for positioning

There are two ways to position the blank materials. One is to achieve positioning with a pneumatic material rack. And the other is to reserve a center hole directly at the center of the mandrel, This way can reduce a mechanical action and time, It is more stable in mass production.

2. Faster feed speed and spindle speed

Most of the large-quantity spun products are small in size, choosing the little metal spinning lathe can meet higher feed speed and spindle speed, when the aluminum thickness ＜ 1.5mm, steel thickness ＜1.0mm, conventional spinning feed speed you can use 8000mm/min, spindle speed can use 5000 rpm. If you use the feed speed is 4000mm, The actual spinning process takes twice as long .

3. Tool path adjustment＞

When the appearance, thickness and precision of the spun product are achieved, as few tool paths as possible should be used for forming. Fewer tool paths mean less processing time, which mainly depends on the debugging technical level and experience of the metal spinner.

When you spin the the thin thickness of metal, such as aluminum thickness ＜ 1.2mm, steel thickness ＜1mm, you can use the back roller ＞ to reduce the tool path, back roller can improve the edge strength of the work piece and make it deform easy.

When you spin the thickness of metal, such as aluminum thickness ＞ 8mm, steel thicknes ＞5mm, Appropriate heating can enhance the fluidity of the material, it also can improve the production efficiency.

4. Trimming tool

The tool mounting of a CNC metal spinning lathe can generally assemble several roller holders, allowing for the installation of different spinning roller and turning tools. However, when changing tools in a CNC spinning machine, the tool mounting must be moved to a safe position for tool changing to avoid machine collision, this action usually takes 10 to 30 seconds.

After the spinning forming is completed, CNC spinning machine is usually needed to cut the edges. To save the time for changing the cutting tool, a radial cutting tool can be installed directly beneath the mandrel. When the spun material sheet exceeds the length of the cutter, the excess material will be automatically cut off.

Roller shear trimming is another practical method for trimming thin materials. When the thickness of stainless steel is less than 0.8mm, the  thicknes of mild steel is less than 1mm, the thickness of aluminum is less than 1.5mm, roller shear trimming only requires a simple and inexpensive mold to achieve trimming. The trimming time is generally 5 seconds per piece, and it is particularly suitable for mass production. Its disadvantage can't trim the thicker cylinder.

5. The cylinder of tailstock

The air cylinder of tailstock operate at a fast speed, but its clamping force is not enough to clamp the thick sheet, So thicker sheet spinning needs the hydraulic cylinder, there is a positioning block on the hydraulic cylinder to reduce the stroke, it can reduce the the operation time of the hydraulic cylinder.

6. Automated loading and unloading

Automated loading and unloading can reduce the labor force of workers and minimize production halts caused by operational errors. It usually takes more than one minute to spin a product, and one mechanical hand can control the loading and unloading of two CNC spinning machines. The application of automated mechanical hands has greatly enhanced the spinning capacity and production efficiency.

7. Semi-finished products of deep drawing

When the cylinder or trumpet height is over 100mm, to use deep drawing to make a Semi-finished that the height is over 50mm, then put it on a CNC spinning machine, it is easy to form and the tool path is short than normal metal spinning, it can save 2-4 minutes to spin a cylinder or trumpet.