In this ultimate guide to stainless steel CNC V-grooving, I aim to share my insights and experiences with this essential machining process. V-grooving is a critical technique for achieving precise bends and cuts in stainless steel sheets, allowing for clean, professional results. Throughout this guide, I’ll cover everything from the basics of CNC V-grooving to advanced techniques and tips for optimizing your workflow. Whether you’re a seasoned pro or just starting, this comprehensive guide will equip you with the knowledge to enhance your metalworking projects effectively.

Metal sheet CNC V-grooving machine is often used in architectural decoration industry, which can groove stainless steel sheet, aluminum sheet and other metal sheets in V-shape, so that the arc radius of the edge of the workpiece after bending is extremely small, and the bending force required for bending sheet is reduced. It can also be used to pre-position the bending side length before bending to ensure the accuracy of the size of the bending side length. It is a new equipment that has been vigorously promoted at home and abroad in recent years.

Features

After V-shaped slotting of sheet metal, the bending force required for bending sheet metal is reduced, and the long sheet metal can be bent on a smaller tonnage bender.

The slotting machine can also score wire slots on metal sheets to accurately position the bending side length before bending, and then bend on the bending machine according to the pre-scored wire slots, which can ensure the high precision of the bending side length.

Slotting machine can control the depth of metal plate slotting, so that some special bending materials can be bent and formed on common bending machines.If the folded sheet metal has not been slotted, some special bending materials will not be bent and formed on the bending machine, or a specially designed complex die will be used to complete the work.

Configurations

⒈Imported high-power air-cooled spindle has high precision, long service life, stable operation, good starting performance and large torque, which can give full play to the advantages of high-speed operation of slotting machine and has higher efficiency.

⒉Equipped with a unique tool changing mechanism, the required tools can be exchanged at will, and the special tool setting table can accurately compensate the tool length error.The tool changing time is only 10 seconds, and the tool magazine comes standard with 8 pieces, which can be customized with larger capacity.

⒊Imported PMI square linear guide rail and double-row and four-row ball slide blocks are adopted, which has large bearing capacity and stable operation. High-precision and high-strength high-quality rail ensures the mechanical precision and wear resistance, and its service life is 10 times longer than that of circular guide rail.Imported ball screw is accurate in cutting down.

⒋Advanced file preprocessing function helps users to correct errors in processing files in time, with good software compatibility, which can be compatible with various CAD and CAM design and production software such as Type 3/Artcam/Castle/Wen Tai.

⒌High-power vacuum pump with stable performance, low temperature, low noise, environmental protection, long service life and easy maintenance;It effectively solves the problem that it is difficult to change water for the water circulation vacuum pump in cold weather.

⒍The table top is the world’s leading vacuum adsorption table top, which is made of bakelite board, with high adsorption capacity, which can strongly adsorb materials of different areas, with large density and no deformation.

⒎Intelligently protect the countertop to prevent possible damage to the countertop caused by misoperation or software errors;Intelligent processing cross-border protection to prevent mechanical collision caused by design layout exceeding processing width.

⒏Automatic oil filling and lubrication system, which can be operated with one button, is convenient to use and has better machine maintenance.

⒐The high-power servo motor drive system imported from Japan is adopted, and the Y-axis is driven by double motors, so that the high-speed operation can reach the idle speed above 60m/min.

⒑ The electrical system adopts imported frequency converter, Japanese Mitsubishi servo driver and motor, Siemens electrical components, etc.It avoids the common fault of high failure rate of common domestic electrical parts, and has stronger stability and durability and higher safety.

⒒ With precise adjustment of the position of the tool holder and automatic tool setting system, it is more convenient and simple to operate the tool, which directly improves the production efficiency.

⒓ It is more convenient to control the cabinet control system independently.

Applications

The metal sheet slotting machine is specially used in the decoration industry of high-grade building metal materials. It can slot stainless steel sheet, aluminum sheet, composite aluminum sheet, steel sheet and other metal sheets in V shape, which meets the special needs of high-grade decoration in hotels, restaurants, commercial buildings, banks, airports and other places.

Classification and comparison

Sheet metal CNC V-grooving machines are designed in two mainstream forms: vertical and horizontal.Horizontal metal sheet CNC V-grooving machine originated from South Korea. As an imported equipment, it is sought after by many people. After using it, many disadvantages are felt. Compared with vertical machine, we summarize the following differences:

⒈Accuracy advantage: the groove depth is directly related to the bending effect. If the depth error reaches 0.05mm, the bending position R is obviously inconsistent.When the vertical metal sheet CNC V-grooving machine works, the planing tool runs in a straight line position, and the distance accuracy between the tool tip and the table top is controlled within 0.02 mm.When the horizontal metal sheet CNC V-grooving machine works, the knife faces the precision of a platform with a width of 1.5 meters and a length of more than 4 meters, so it is difficult to control it within 0.1 mm.Therefore, the precision of horizontal metal sheet CNC V-grooving machine is far less than that of vertical metal sheet CNC V-grooving machine.

⒉Power loss: When the vertical metal sheet CNC V-grooving machine is slotting, the knife rest moves back and forth, and its weight is about 60kg. When the horizontal metal sheet CNC V-grooving machine is slotting, the horizontal and knife rest move back and forth together, and its weight is about 1000kg, and its energy loss is more than 10 times that of the vertical metal sheet CNC V-grooving machine. Therefore, the vertical metal sheet CNC V-grooving machine is an energy-saving and environment-friendly device.

⒊Processing range: The vertical metal sheet CNC V-grooving machine has more than a dozen independent pressing plates and more than a dozen independent clamps to automatically load plywood, which is easy to process regardless of the size of the board, and can be slotted horizontally and longitudinally, with a minimum workpiece of 80*80mm.The horizontal metal sheet CNC V-grooving machine only grooves large sheets. After longitudinal planing, the sheets are deformed and cannot be clamped transversely, resulting in transverse slotting.

⒋Processing technology: The working table of the vertical metal sheet CNC V-grooving machine is made of high-quality die steel which is integrally heat treated and finely ground by a grinder, and the surface fineness reaches the mirror effect.The working table of the horizontal metal sheet CNC V-grooving machine is welded by ordinary iron plates, and the stainless steel plates have higher hardness than it. The gouging and damaged blades make the table potholes.This is also the reason why the processed products are spotted.

⒌Easy installation: The vertical metal sheet CNC V-grooving machine is made of welded steel plates, which has high strength and stable and quiet operation. It can work stably only by placing and leveling the solid cement floor, and it is convenient to move and hoist.Because of the high-speed operation of horizontal, the impact force of horizontal metal sheet CNC V-grooving machine is large, and the platform needs foundation adjustment, so concrete foundation should be made according to the installation drawing.

⒍Safety in use: The vertical metal sheet CNC V-grooving machine automatically clamps the workpiece by hydraulic pressure, locates and works automatically, and the operator is far away from the moving parts of the machine tool.The horizontal metal sheet CNC V-grooving machine clamps the workpiece in the movement range of the machine tool, the horizontal moves at high speed, and the control part runs together with the horizontal, which can easily cause personal injury to the operator and has great potential safety hazards.

⒎Comprehensive recommendation: According to the respective characteristics of the two forms, it is recommended to choose a vertical metal sheet CNC V-grooving machine if there are many sheets with non-standard slotting (laser cutting shape), and a horizontal metal sheet CNC V-grooving machine if there are many sheets with symmetrical specifications (square or rectangular).According to the above characteristics, the two machines have their own characteristics in many aspects such as precision, energy consumption, technology and installation. However, the price of horizontal metal sheet CNC V-grooving machine in the market is slightly lower than that of vertical metal sheet CNC V-grooving machine, so you can choose your own according to the actual situation.

Operations

⒈Blow the platform clean with air duct first, without iron filings and other sundries;

⒉Place the metal sheet on the platform. The starting end of the sheet should be aligned with the first presser foot. The metal sheet has a protective film, and the side with the protective film faces down;

⒊ Determine the position of the cutter head. If the cutter head is not in the correct position, it can be corrected according to “origin alignment”, and “origin alignment” should be performed as little as possible;

⒋Check whether the blade is in good condition, whether need to change the knife operation (planing iron plate need white steel knife, planing stainless steel plate need alloy knife);

⒌Special personnel are required to operate when changing knives. When changing alloy knives, it is necessary to pad up the 35mm-high knife block.

⒍ After the preparatory work is finished, input the calculated bending size into the machine, and pay attention to the error of the first knife (the error is obtained by actual measurement), and the allowance of the press plate should be set aside for the last knife;

⒎After the input work is finished, press the “Slotting Preparation” button after ensuring that the first knife is not less than 8mm, and plan the first knife. After the knife body is withdrawn and the position “OK” flashes, press “Beam backward” to move the beam to the next knife position, and press “Tool holder forward” to execute the next knife, and repeat this until all dimensions are planned;

⒏ After the last knife is planed, manually move the beam backward, and pull the release button of the material pressing switch to take out the plate;

⒐ Clean the workbench.

Notes

⒈ Add lubricating oil before starting up every day;

⒉ The slotting depth of a single knife is 0.33, 0.22, 0.15, 0.15, 0.15, 0.15, 0.15, 0.10 and 0.10 in turn.

⒊ The “Slotting Preparation” button is the pre-slotting preparation button of the automatic slotting machine, so do not press this button during slotting.

⒋ After entering the new program, press the “Emergency Stop Switch” and then turn it on, and then press the “Tool Holder Forward” key for slotting;

⒌ When the angle is less than 90 degrees, the planed slot should be expanded with an obtuse knife.

⒍ Don’t switch the switch in the electrical cabinet frequently, just dial out the key every time you turn it off;

⒎ In the process of slotting, air ducts should be used to blow off the scrap iron at any time, and there should be no sundries under the platform fixing frame;

⒏When the thin plate fixing frame (presser foot) is not tight, the internal hexagonal wrench can be used to tighten the screws;

⒐ Pay attention to the cooling liquid allowance and coolant injection angle at any time;

⒑ Once the machine fails, should immediately stop for maintenance, do not work in spite of illness.

Video Demo