Author:Site Editor Publish Time: 2019-12-18 Origin:Site
In ordinary tool processing, a single or multiple point tool can be used to remove a piece of metal from a metal plate or block. This process requires repeated tapping of the metal until the desired size is reached. Metal shearing machine is the removal of metal from the plate by applying the maximum pressure to the cutting edge of the tool. During this process, the tool contacts the metal only once. Metal sheet shearing machine can cut and score metal sheets quickly and accurately. They are perfect for factories that do a lot of metal processing. In addition, sheet shearing machines do not require much maintenance, can run continuously, and are quiet and fast.
Shearing, also known as die cutting, is a process that does not form chips or use burning or melting to cut material. When applying a high-pressure tool through a metal plate and removing some metal, this process is also called shearing. Shear-type operations include: blanking, piercing, roll slitting and trimming.
The first step in manufacturing a sheet metal part is to cut to a certain size. Metal shearing machine performs this function, which is a multifunctional device for cutting alloys and other sheet metal. Shearing equipment includes punches and blanking machines, the former used to make small discs and the latter used to make gaskets and similar items.
A metal sheet shearing machine is a machine that cuts a sheet by reciprocating linear motion of one blade relative to the other. Through the movable upper blade and the fixed lower blade, a reasonable blade gap is applied to apply shearing force to metal plates of various thicknesses, thereby achieving the effect of breaking and separating metal plates according to the required size. BOSLASER is a professional shearing machine manufacturer, and it has 15 years’ experience in shearing machine industry.
The cutting operation is performed by the action of two blades. The upper blade of the shear cutting machine is fixed on the knife holder, the lower blade is fixed on the workbench, and the upper blade is vertically moved from one side to the other. In a sheet shearing machine, the upper blade is inclined about 0.5 to 2.5 degrees relative to the lower blade. Generally, the gap between the two is between 5% and 40% of the material thickness, but it depends on the material. The gap is defined as the distance between the blades, which is measured at a position where a cutting action occurs and is perpendicular to the direction of the blade movement. It affects the completion of the cut and the power consumption of the sheet shearing machine.
A support ball is installed on the workbench so that the metal plate will not be scratched when it slides over. The tailgate is used for positioning the metal plate, and its position is adjusted by the motor. The pressure roller is used to prevent the metal plate from moving during the cutting process. Guardrail is a safety device to prevent accidents. Measuring systems with stoppers are used to produce specific workpiece surface finishes.
1. Manual shearing machine
Driven manually or by screws, levers or other mechanisms.
2. Mechanical shearing machine
Driven by rotary motors through screws, toggle levers, levers or other mechanisms.
3. Servo-driven shearing machine
Driven by a direct connection to a servo motor.
4. Hydraulic shearing machine:
Driven or powered by hydraulic cylinders. Hydraulic presses can generate extremely high forces to cut metal or other materials.
5. Hydromechanical shearing machine
Driven by hydraulic cylinders or hydraulic motors.
6. Pneumatic/pneumatic shearing machine
Driven by air cylinders, providing power to the crosshead and upper blades.
After inserting the metal into the metal sheet shearing machine, secure it with a clip so that it does not shift under high pressure. To ensure a smooth incision, even for 90-degree incisions, a square arm or back gauge must be used. Fine burrs may form on the edges of the cut metal. These must be removed by grinding. If using hydraulic shearing machine, pay attention to the small marks left by the cutting blades and retaining clips when working, and you need to remove them.
After cutting, the flatness and parallelism of the cutting surface of the cut object should be ensured, and the deformation of the cut object should be minimized to obtain high-quality workpieces.
1. Manual mode
Manual control of the cutter through operator interface equipment (such as footswitches, pendants or button controls)
2. Automatic mode
The automatic device can automatically load parts into the system and run without operator intervention. The machine changes or adjusts tools and other parameters such as speed or applied load in a pre-programmed manner. Automation controls include:
1) CNC control or PLC controller for programming the press and performing a series of operations.
2) Windows / PC control, cutting or controlling through a PC interface.
Sheet shearing machines make clean, straight cuts on flat stock. Unlike traditional torch cutting, it has a straighter edge than torch cutting because it does not form chips or burn materials when cutting. This allows manufacturers to make products as accurate as possible.
The biggest advantage of metal shearing machine is that little or no waste is produced. Unlike other cutting methods, there is almost no material loss during shearing. Because the metal sheet shearing machine can cut relatively short materials at one time, the cutting blade can be installed at an angle, so the sheer force of each item is also smaller than other methods.
Another advantage of using metal sheet shearing machines is that they can be used very safely compared to other types of sheet shearing machine. Unlike torch cutting or other methods, the operator can stay away from the machine without burns. As long as proper safety precautions are taken and the metal shearing machine is regularly maintained, shearing cutting machine can provide the cleanest production line with minimal risk.
Metal sheet shearing machine cut and score metal sheets quickly and accurately, and they are perfect for factories that do a lot of metal processing. In addition, the sheet shearing machine do not require much maintenance and can run quietly and quickly. Metal shearing machine take up less space when the same amount of pressure is applied.
The metal sheet shearing machines require regular maintenance. The cutting blades must be sharpened regularly to ensure that cutting does not produce poor cutting quality. In addition, appropriate equipment must be used for shear sharpening. When using a cutting blade, the angle of the cutting edge and the smoothness of the grinding are important factors that determine the cutting performance and life.
BOSLASER is a professional shearing machine manufacturer, and it has 15 years’ experience in shearing machine industry. If you have any needs, please contact us.