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| English Term | Explanation |
| 1. Core Equipment Terms | |
| Press Brake | A machine that bends sheet metal or plate by pressing the workpiece between an upper punch and a lower die. |
| CNC Press Brake | A press brake controlled by computer numerical control for programmable, precise, and repeatable bending operations. |
| NC Press Brake | A press brake using a simpler numerical controller for basic positioning and repeatable bend programs. |
| Hydraulic Press Brake | A press brake powered by hydraulic cylinders that move the ram and generate bending force. |
| Servo Press Brake / Electric Press Brake | A press brake driven mainly by servo motors and electric transmission systems instead of a conventional hydraulic ram drive. |
| Tandem Press Brake | Two or more synchronized press brakes used together to bend exceptionally long workpieces. |
| Panel Bender / Bending Center | An automated bending machine that positions and folds sheet edges through multiple programmed bends with minimal manual handling. |
| Shearing Machine / Plate Shear | A machine that cuts sheet or plate by passing it between two blades. |
| Hydraulic Guillotine Shear | A hydraulic shear whose upper blade moves in a guillotine-style path to produce straight cuts in sheet or plate. |
| Hydraulic Swing Beam Shear | A hydraulic shear whose upper beam pivots in an arc around a fixed point during cutting. |
| V Grooving Machine | A machine that cuts narrow V-shaped grooves in sheet metal to enable sharp, small-radius bends. |
| Vertical V Grooving Machine | A V-grooving machine with a vertical working configuration designed for rigid clamping and precise groove machining. |
| Rolling Machine / Plate Rolling Machine | A machine that forms flat plate into cylindrical, curved, or conical shapes by passing it through rotating rolls. |
| 3-Roll Plate Rolling Machine | A plate rolling machine that uses three rolls to bend plate into cylindrical or curved forms. |
| 4-Roll Plate Rolling Machine | A plate rolling machine that uses four rolls for secure plate clamping, accurate pre-bending, and efficient rolling. |
| Fiber Laser Cutting Machine | A cutting machine that uses a fiber-delivered laser beam to cut metal sheet or plate with high speed and precision. |
| Tube / Pipe Laser Cutting Machine | A laser cutting machine designed to cut holes, slots, contours, and profiles in round, square, or shaped tubing. |
| Tube Bending Machine | A machine that forms tubes or pipes to a specified angle and radius without cutting them. |
| CNC Tube Bending Machine | A computer-controlled tube bending machine that automatically manages feed length, rotation, and bend angle. |
| 2. Bending Process and Machine Structure Terms | |
| Bending | The process of plastically deforming a workpiece to create an angle, curve, or formed profile. |
| Air Bending | A press brake method in which the punch does not fully contact the bottom of the die and the bend angle is controlled by penetration depth. |
| Bottom Bending / Bottoming | A bending method in which the sheet is pressed firmly into the die to obtain a more consistent angle with reduced springback. |
| Coining | A high-pressure bending method that compresses the material into the die cavity to produce a precise angle and very small springback. |
| Bending Angle | The included angle formed between two sections of material after bending. |
| Inside Bend Radius | The radius measured on the inner surface of a bent part. |
| Outside Bend Radius | The radius measured on the outer surface of a bent part. |
| Bending Line | The straight reference line along which a sheet or plate is intended to bend. |
| Bend Allowance | The length of the neutral axis within a bend that is added when calculating the flat pattern. |
| Bend Deduction | The amount subtracted from the sum of flange lengths to determine the correct flat blank length. |
| K-factor | A ratio used to locate the neutral axis through the material thickness during bend calculations. |
| Springback | The elastic recovery of material after the bending force is removed, causing the final angle to open or change. |
| Bending Force / Tonnage | The force required to make a bend, commonly expressed in metric tons, kilonewtons, or tons-force. |
| Crowning | A compensation method that offsets ram and bed deflection to keep the bend angle uniform across the full length. |
| Mechanical Crowning | A crowning method that uses wedges or mechanical adjustment elements to compensate for machine deflection. |
| Hydraulic Crowning | A crowning method that uses hydraulic pressure or cylinders to compensate for ram and bed deformation. |
| Deflection | The elastic bending or displacement of the machine frame, ram, bed, tooling, or workpiece under load. |
| Punch | The upper press brake tool that pushes the workpiece into the lower die. |
| Die / V-die | The lower press brake tool, often with a V-shaped opening, that supports and forms the workpiece. |
| Punch Radius | The radius at the nose of the punch that influences the inside bend radius and surface condition. |
| V-opening / V-die Width | The width of the V-shaped opening in the lower die, which affects bend radius, force, and accuracy. |
| Tooling | The collective term for punches, dies, holders, adapters, and other forming tools used on a machine. |
| Tool Clamping | The system used to secure press brake punches and dies in the correct position. |
| Segmented Tooling | Press brake tooling divided into shorter sections so different bend lengths and box shapes can be produced. |
| Back Gauge | A movable positioning system behind the tooling that locates the workpiece before each bend. |
| Axis (X, R, Z1, Z2, Y1, Y2 etc.) | The controlled machine directions used to move the ram, back gauge, fingers, and other positioning components. |
| Stroke | The total travel distance of a moving machine component, such as a press brake ram. |
| Throat Depth | The horizontal distance from the machine frame to the bending line, which limits the depth of parts that can be formed. |
| Daylight | The maximum open distance between the upper and lower tooling when the ram is fully raised. |
| Working Table / Bed | The rigid lower machine structure that supports the die and workpiece during bending. |
| 3. Shearing and Cutting Terms | |
| Shearing | The process of separating sheet or plate with opposing blades that create a controlled fracture. |
| Cutting Length | The maximum width or length of material that a shearing or cutting machine can process in one operation. |
| Cutting Thickness | The material thickness that a machine can cut under specified material and operating conditions. |
| Blade Clearance | The controlled gap between upper and lower shear blades, adjusted according to material type and thickness. |
| Shear Angle | The angle formed by the shear blade relative to the workpiece, used to reduce peak cutting force. |
| Hold-down / Clamping | A device that presses the workpiece firmly against the table before and during a cutting operation. |
| Back Gauge | A rear positioning system on a shear that sets the distance from the blade to the cut line. |
| Stroke per Minute | The number of complete cutting or ram cycles a machine can perform in one minute. |
| Fiber Laser | A solid-state laser technology in which the beam is generated and delivered through optical fiber. |
| Laser Power | The rated output power of a laser source, usually expressed in watts or kilowatts. |
| Cutting Speed | The linear rate at which the cutting head or workpiece moves during a cutting operation. |
| Cutting Kerf | The width of material removed by the cutting process. |
| Piercing | The initial operation that creates an entry hole so the laser can begin cutting a closed contour. |
| Assist Gas | A gas directed through the cutting nozzle to remove molten material, cool the cut, and influence edge quality. |
| Nozzle | A replaceable tip that directs assist gas and helps control the laser beam position at the cutting point. |
| Cutting Head | The assembly containing focusing optics, sensors, protective windows, and the nozzle that delivers the laser to the workpiece. |
| Processing Area / Working Area | The maximum sheet dimensions or machine envelope available for cutting or processing. |
| Nesting | The arrangement of part shapes on a sheet to maximize material utilization and reduce scrap. |
| Rake Angle | The inclination of the upper shear blade along the cutting length, which reduces the instantaneous cutting load. |
| Ram Stroke | The vertical travel distance of the press brake ram during one cycle. |
| Positioning Accuracy | The closeness of a commanded machine position to the actual measured position. |
| Repeatability | The ability of a machine to return to the same position consistently over repeated cycles. |
| Plate Rolling | The process of forming flat plate into cylinders, cones, arcs, or other curved shapes using rolls. |
| 4. Plate Rolling and Tube Bending Terms | |
| Pre-bending | The forming of plate edges before the main rolling operation to minimize unbent flat sections. |
| Cone Bending | The rolling process used to produce conical or tapered cylindrical parts. |
| Top Roll / Upper Roll | The upper roll that applies or controls bending pressure in a plate rolling machine. |
| Bottom Roll / Lower Roll | The lower roll that supports and feeds the plate during rolling. |
| Side Roll | An adjustable lateral roll used to guide, support, and bend the plate. |
| Roll Diameter | The outside diameter of a forming roll, which influences capacity and the minimum achievable curve. |
| Bending Length | The maximum plate width that can be rolled or the effective working length of the machine rolls. |
| Minimum Bending Diameter | The smallest finished cylinder diameter the machine can produce under specified material and thickness conditions. |
| Tube Bending | The process of forming a tube or pipe to a specified angle and centerline radius. |
| Mandrel | An internal support inserted into a tube during bending to reduce collapse, flattening, and wrinkling. |
| Wiper Die | A tool positioned near the bend tangent to prevent wrinkles from forming on the inside of a tube bend. |
| Clamp Die | A die that grips the tube and holds it against the bend die during rotary draw bending. |
| Bend Radius | The specified radius of a bend, commonly measured from the bend center to the tube centerline. |
| Ovality | The degree to which a bent tube cross-section becomes out of round. |
| 5. Control Systems and Automation Terms | |
| CNC System | The integrated computer control platform that manages machine axes, programs, parameters, diagnostics, and automation functions. |
| NC Controller | A numerical control device used for simpler machine programming, position setting, and sequence control. |
| Delem / Cybelec / ESA | Common brands of press brake control systems used for programming, axis control, and machine operation. |
| Touch Screen HMI | A touch-sensitive human-machine interface used to enter programs, monitor status, and operate equipment. |
| Programming | The process of entering dimensions, angles, sequences, speeds, and machine settings for an automated operation. |
| 2D / 3D Programming | Graphical programming that uses two-dimensional or three-dimensional part models to create and verify machining or bending programs. |
| Offline Programming | The creation and simulation of machine programs on a separate computer without occupying production equipment. |
| Servo Motor | A motor with closed-loop feedback that provides precise control of position, speed, and torque. |
| Hydraulic System | The pumps, reservoirs, valves, cylinders, filters, and piping that generate and control hydraulic power. |
| Proportional Valve | An electrically controlled valve that varies hydraulic flow or pressure in proportion to an input signal. |
| Encoder | A feedback device that measures rotary position, speed, or movement for closed-loop machine control. |
| Linear Scale | A precision linear measuring device that reports the actual position of a moving axis. |
| Bending Sequence | The planned order in which multiple bends are made to produce a part without interference or distortion. |
| Collision Check | A software or control function that detects potential contact between the part, tooling, machine, or back gauge before production. |
| Tool Library | A stored database of punches, dies, dimensions, load limits, and tool setup information used by the controller. |
| Material Library | A stored database of material properties, thicknesses, bend factors, and correction values used in programming. |
| Automatic Bending Cell | An automated production unit combining a press brake with robotic handling, tooling, safety systems, and part flow equipment. |
| Robot Integration | The mechanical, electrical, and software connection of an industrial robot with a machine or production line. |
| Safety Light Curtain | An optoelectronic safety device that stops or prevents hazardous machine movement when its light beams are interrupted. |
| Safety Guard / Fence | A physical barrier used to prevent unauthorized access to hazardous moving parts or automated work areas. |
| CE Safety Standard | Safety requirements and conformity practices applied to machinery placed on the European market. |
| Backgauge | A rear positioning assembly that sets the workpiece depth before bending or shearing. |
| Crowning System (Hydraulic/Mechanical) | A hydraulic or mechanical system that compensates for machine deflection to maintain a consistent bend along the workpiece. |
| Laser Source | The component that generates the laser beam supplied to a laser cutting system. |
| Punch and Die | The matched upper and lower press brake tools that apply force and define the bend shape. |
| Clamping System | A mechanism that securely holds tooling or the workpiece to prevent movement during processing. |
| CNC Controller | The controller hardware and software used to program, coordinate, and monitor CNC machine operations. |
| Sheet Metal | Flat metal stock with relatively small thickness compared with its length and width. |
| Plate | Flat metal stock that is generally thicker and more rigid than sheet metal. |
| Mild Steel | Low-carbon steel valued for good formability, weldability, availability, and relatively low cost. |
| 6. Materials and Sheet Metal Terms | |
| Stainless Steel | Steel alloyed with chromium and other elements to provide corrosion resistance and durable surface properties. |
| Aluminum Alloy | Aluminum combined with other elements to improve strength, formability, corrosion resistance, or machinability. |
| Galvanized Steel | Steel sheet or plate coated with zinc to improve corrosion resistance. |
| Material Thickness | The measured distance between the two main surfaces of a sheet, plate, tube wall, or other material. |
| Yield Strength | The stress at which a material begins to deform permanently. |
| Tensile Strength | The maximum tensile stress a material can withstand before necking or fracture. |
| Grain Direction | The orientation of the material's rolling structure, which can affect bend cracking, strength, and springback. |
| Elongation | The percentage increase in length a material can sustain before breaking, used as an indicator of ductility. |
| Sheet Metal Fabrication | The manufacture of metal parts by cutting, bending, forming, joining, and finishing sheet material. |
| Metalworking | The broad industrial practice of shaping, cutting, forming, machining, and joining metals. |
| Fabrication Shop | A production facility equipped to cut, form, weld, and assemble metal components. |
| 7. Application and Industry Terms | |
| Job Shop | A manufacturing business that produces custom, low-volume, or varied parts for different customers. |
| Batch Production | The production of a defined quantity of similar parts in repeated lots. |
| Prototyping | The creation of trial parts or early samples to evaluate design, fit, function, and manufacturability. |
| Decoration / Architectural Metalwork | The fabrication of metal elements used for decorative finishes, building features, façades, railings, and architectural structures. |
| HVAC Ducting | Sheet metal ducts and fittings used to distribute heating, ventilation, and air-conditioning airflow. |
| Automotive Parts | Components manufactured for vehicles, including structural, body, chassis, exhaust, enclosure, and support parts. |
| Shipbuilding | The construction and assembly of ships and marine structures using formed plate, profiles, and fabricated components. |
| Machinery Manufacturing | The production of industrial machines, frames, enclosures, components, and mechanical systems. |
| Aerospace Components | Precision parts and structures manufactured for aircraft, spacecraft, propulsion, and related high-performance applications. |
| 8. Pre-Sales, After-Sales, and Quality-Related Terms (Supporting ESG and Trust) | |
| Commissioning | The installation, calibration, testing, and acceptance process that prepares new equipment for normal production. |
| Training | Instruction provided to operators and maintenance personnel on safe use, programming, setup, and service procedures. |
| After-Sales Service | Technical support, maintenance, repair, spare-parts supply, and other assistance provided after equipment delivery. |
| Warranty | A supplier's defined commitment to repair or replace covered defects within a specified period and under stated conditions. |
| Spare Parts | Replacement components kept available to restore or maintain equipment operation. |
| Preventive Maintenance | Planned inspection, lubrication, adjustment, and part replacement performed before failures occur. |
| Troubleshooting | The systematic process of identifying the cause of a fault and restoring normal machine operation. |
| Downtime | The period during which equipment is unavailable for production because of failure, maintenance, setup, or other interruption. |
| OEM / ODM | OEM refers to manufacturing products to another company's specification, while ODM includes product design and manufacturing services. |
| CE Certification | Confirmation that a product meets applicable European conformity requirements and may carry the CE marking when required. |
| ISO 9001 Quality Management | An internationally recognized quality management framework focused on consistent processes, customer requirements, and continual improvement. |
| ESG | Environmental, social, and governance factors used to assess responsible business practices and long-term organizational performance. |
| Energy Efficiency | The ability of a machine or process to deliver the required output while using less energy. |
| Environmental Compliance | Adherence to applicable environmental laws, permits, standards, and operational requirements. |
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