Our CNC Punching Services
Elevate your sheet metal production with our CNC Punching services—the gold standard for automated punching y Punching de chapa en todas las industrias. Leveraging high-speed punch presses and advanced CNC technology, we craft complex geometries (agujeros, ranura, muescas) in metals (acero inoxidable, aluminio), plástica, and composites—delivering tight tolerances, Residuos de material mínimo, and consistent results for aerospace, automotor, y proyectos arquitectónicos. Whether you need high-volume HVAC components or custom electronic enclosures, our efficient, versatile solutions turn sheet materials into high-quality parts fast.

What Is CNC Punching?
Punching CNC is an automated sheet metal fabricationtecnología that uses computer-controlled punch presses to create holes, ranura, muescas, or formed features in flat sheet materials. Unlike manual punching (which relies on human alignment and is limited to simple shapes), it uses pre-programmed tool paths to drive a punch and die set—punching precise features into sheets with minimal human intervention.
Eldescripción general del proceso es sencillo: A sheet of material (metal, plástico, etc.) is secured on a punch press table. A CNC system interprets design files to position the sheet (via X/Y linear axes) and actuate the punch— which descends into a matching die to cut or form the desired feature. Multiple tools (stored in a turret) can be swapped automatically to create diverse features in one setup.
To explain “Cómo funciona” simply: Imagine a digital stamping machine that can punch 100 identical holes in a steel sheet, then switch tools to add slots and notches—all without moving the sheet to another machine. Por ejemplo, an aluminum HVAC vent (with dozens of air holes and mounting slots) can be fully punched in 5 minutos. This blend of automation, velocidad, and precision is what makesPunching CNC ideal for high-volume sheet metal parts with repetitive features.
Our CNC Punching Capabilities
We offer comprehensivepunching capabilities tailored to sheet material projects, con un enfoque enniveles de precisión, tolerance achievements, and high-speed efficiency. Below is a detailed breakdown of our key capacities:
Capacidad | Especificación |
---|---|
Machine Configuration | – Punch Press Type: Turret punch presses (up to 40-station turrets)- Axis Travel: Eje x (3000milímetros), Eje y (1500milímetros)- Punch Force: 20–60 tons (adjustable for material thickness) |
Niveles de precisión | – Hole position accuracy: ± 0.1 mm- Feature repeatability: ± 0.05 mm- Edge straightness: ≤0.05mm/m |
Tolerance Achievements | – Estándar: ± 0.1–0.2 mm (rieles), ±0.2–0.3mm (non-metals)- Partes críticas: ± 0.05 mm (P.EJ., corchetes aeroespaciales)- Se encuentra con ISO 2768-1 (medium-fine grade) y asme y14.5 |
Maximum Sheet Size | – Longitud: Hasta 3000 mm- Ancho: Up to 1500mm- Peso: Up to 50kg (supported by automatic sheet feeders) |
Material Thickness Range | – Rieles: 0.3mm–6mm (acero inoxidable), 0.2mm–8mm (aluminio), 0.5mm a 10 mm (acero suave), 0.3mm-5 mm (acero galvanizado), 0.3mm–4mm (cobre)- Non-Metals: 0.5mm a 10 mm (plástica), 0.5mm–8mm (compuestos), 1mm–6mm (acrílico)- Special Materials: 0.5mm-5 mm (high-strength alloys like HSLA steel) |
Punching personalizado | – Características: Agujeros (0.5mm–100mm diameter), ranura (width 0.5mm+), muescas, embossments, louvered vents- Compatibilidad: CAD/CAM files (DXF, Dwg, PASO, DXF)- Volumen: Prototipos (1–100 sheets) to high-volume (10,000+ sheets/month) |
Opciones de herramientas | – Turret Tools: Round punches, oblong punches, slot punches, Herramientas de formación (emboss, flange)- Materiales de herramientas: Acero de alta velocidad (HSS) for soft metals/plastics, carbide for hard metals/alloy- Tool Change: Automatic (≤1 second per tool change) |
High-Speed Punching | – Punch Rate: Arriba a 600 hits per minute (HPM) para pequeños agujeros (≤5mm diameter)- Sheet Feed Speed: Up to 30m/min (automated feeders) |
Seguro de calidad | – In-line Inspection: Vision systems (real-time feature position checks)- Post-punching: CMMS (para partes críticas), calipers/micrometers (para piezas estándar)- Cumplimiento: ISO 9001, AS9100 (aeroespacial), ISO 13485 (médico) |
Si lo necesitas 100 stainless steel control panels (con 50 holes each) o 5,000 acrylic display casings (with custom slots), our capabilities scale to match your project’s complexity.
The CNC Punching Process
Nuestroproceso paso a paso is optimized to maximize efficiency and precision for sheet metal and non-metal punching:
Post-Punching Inspection: Las piezas sufren control de calidad—we check feature positions with calipers/CMMs, verify hole sizes with gauge pins, and inspect edges for burrs. Parts requiring finishing move to desacuerdo o cuadro; nested parts are separated (via shearing if needed).
Design and CAD Modeling: We start by reviewing your CAD model (or creating one from sketches) to identify all features (agujeros, ranura, etc.). Our engineers optimize the design for CNC punching—e.g., ensuring hole spacing meets tooling constraints and features are arranged to minimize material waste (via nesting software).
Programación de cámaras: The CAD model is imported into CAM software (Lantek, SolidWorks CAM) to generate rutas de herramientas. We program the sequence of operations: selecting tools for each feature, setting punch force (Basado en el grosor del material), and optimizing sheet movement (X/Y axes) to reduce cycle time. Para carreras de alto volumen, we use nesting software to fit multiple parts on one sheet.
Setup and Calibration: The sheet material is loaded into an automatic sheet feeder (por alto volumen) or manually secured to the press table (para prototipos). We calibrate the punch press—setting tool offsets (to ensure feature accuracy) and testing punch force on a scrap piece of material. The turret is loaded with required tools (round punches, slot punches, etc.).
Punching Execution: The CNC system runs the program:
The sheet is positioned via X/Y axes to the first feature location.
The punch descends into the die to cut/form the feature (punch force adjusts automatically for material thickness).
The turret swaps tools (si es necesario) for subsequent features.
For formed features (P.EJ., embossments), a forming tool replaces the standard punch to shape the material without cutting.
Post-Punching Inspection: Las piezas sufren control de calidad—we check feature positions with calipers/CMMs, verify hole sizes with gauge pins, and inspect edges for burrs. Parts requiring finishing move to desacuerdo o cuadro; nested parts are separated (via shearing if needed).
Materials We Work With
Punching CNC works best with flat, ductile materials—though tool selection and punch force vary based on material hardness and thickness. Below is a breakdown of our supported materials, propiedades clave, y usos ideales:
Categoría de material | Ejemplos | Propiedades clave | Punching Notes (Force/Tools) | Aplicaciones ideales |
---|---|---|---|---|
Rieles | Acero inoxidable | Resistente a la corrosión, moderate hardness | 30–50 tons force; carbide punches | Equipo de procesamiento de alimentos, medical panels |
Aluminio | Ligero, suave, Dukes | 10–30 tons force; HSS punches | Paneles de cuerpo automotriz, HVAC components | |
Acero suave | Fuerte, rentable, Dukes | 20–40 tons force; HSS/carbide punches | Corchetes, recintos industriales | |
Acero galvanizado | Resistente a la corrosión (recubrimiento de zinc) | 25–45 tons force; carbide punches (avoids coating damage) | Paneles de techo, cajas eléctricas | |
Cobre | Highly conductive, suave | 15–35 tons force; HSS punches | Electrical busbars, disipadores de calor | |
Non-Metals | Plástica (ABS/Polycarbonate) | Ligero, durable, bajo punto de fusión | 5–20 tons force; HSS punches (low speed to avoid melting) | Recintos electrónicos, consumer goods casings |
Compuestos | Alta fuerza, ligero, abrasive | 20–40 tons force; diamond-coated punches | Paneles interiores aeroespaciales, racing car parts | |
Acrílico | Transparente, rígido, frágil | 5–15 tons force; sharp HSS punches (low force to avoid cracking) | Vitrina, señalización | |
Special Materials | Aleaciones de alta resistencia (Acero hsla) | Alta resistencia a la tracción, resistente al desgaste | 40–60 tons force; carbide punches | Automotive safety components, defense parts |
We test all materials to optimize punch force, tipo de herramienta, and sheet feed speed—ensuring clean cuts/forms without material damage.
Tratamiento superficial & Opciones de acabado
After CNC punching, Ofrecemos una gama detratamiento superficial yfinishing options to enhance part durability, apariencia, y funcionalidad. Our most popular services include:
Finishing Option | Descripción del proceso | Beneficios clave | Compatibilidad de material | Costo (per sq. metro, avg.) | Mejor para |
---|---|---|---|---|---|
Desacuerdo | Removes sharp edges (via tumbling, cepillado, or manual tools) | Improves safety; prevents assembly issues | All materials | $5- $ 15 | Medical panels, bienes de consumo |
Cuadro | Applies spray/powder paint (matte/gloss) para resistencia a la corrosión | Mejora la estética; protects from rust | Rieles, compuestos | $15- $ 40 | Outdoor architectural parts, componentes automotrices |
Revestimiento | Opción: Revestimiento de polvo (grueso, resistente a los arañazos), bata (protector) | Durabilidad; Resistencia a los rayos UV | Rieles, plástica | $20- $ 50 | Industrial enclosures, señalización |
Anodizante | Adds oxide layer to aluminum (dyed or clear) para resistencia a la corrosión | Decorative finish; resistencia a las arañas | Aluminio | $18- $ 35 | Gabinetes electrónicos, piezas aeroespaciales |
Tratamiento térmico | Heats/cools metals (P.EJ., acero suave) to increase hardness | Improves strength; resistencia al desgaste | Acero, high-strength alloys | $30–$60 | Tooling components, defense parts |
Limpieza de superficie | Removes oil/ debris (via solvent cleaning or ultrasonic cleaning) | Prepares surface for painting/coating | All materials | $3- $ 10 | Parts requiring post-finishing |
Electro Excripción | Coats metals with thin layer (zinc, níquel, cromo) for conductivity/corrosion resistance | Enhances functionality; estética | Acero, cobre, latón | $25–$60 | Componentes eléctricos, piezas decorativas |
Por ejemplo, we use anodizing for aluminum electronics enclosures (Para resistir los rasguños) and powder coating for mild steel HVAC panels (to protect against outdoor corrosion).
Tolerancias & Seguro de calidad
Tolerancias for CNC Punching focus on feature position (hole/slot alignment) and size consistency—critical for parts that require assembly (P.EJ., panels with fastener holes). Nuestroquality control processes ensure strict adherence to standards:
Material | Position Tolerance (Holes/Slots) | Size Tolerance (Agujeros) | Calidad de borde (Burr Height) | Accuracy Standard Used | Measurement Technique |
---|---|---|---|---|---|
Acero inoxidable | ±0.08–0.15mm | ± 0.05–0.1 mm | ≤0.03mm | ISO 2768-1 (mediano), ASME Y14.5 | Cmm + Gauge Pins |
Aluminio | ± 0.1–0.2 mm | ±0.08–0.15mm | ≤0.05mm | ISO 2768-1 (medio), Ams 2750 | Calibrador + Vision System |
Acero suave | ± 0.1–0.2 mm | ±0.08–0.15mm | ≤0.04mm | ISO 2768-1 (medio), EN 10025 | Micrómetro + Cmm |
De plástico de los abdominales | ±0.2–0.3mm | ±0.15–0.25mm | ≤0.08mm | ISO 2768-1 (grueso), ASTM D638 | Vision System + Calibrador |
High-Strength Alloy | ±0.08–0.12mm | ± 0.05–0.1 mm | ≤0.03mm | ISO 2768-1 (mediano), AS9100 | Cmm + Laser Scanner |
Nuestroquality control processes incluir:
Post-punching: 100% Inspección para partes críticas (aerospace/medical); statistical sampling (5–10%) para piezas de alto volumen. We also document every batch with inspection reports.
Pre-punching: Inspecting raw sheets for defects (P.EJ., pandeo, arañazos) and verifying thickness with micrometers.
En proceso: Real-time checks via vision systems (for feature position) and punch force monitors (to detect tool wear).
Key Advantages of CNC Punching
Compared to other sheet metal processes (P.EJ., corte con láser, manual punching), Punching CNC Ofrece beneficios únicos:
Minimal Material Waste: Nesting software optimizes part placement on sheets, reducing waste to 5–10% (VS. 15–25% for manual cutting).
Alta precisión: Achieves feature position accuracy of ±0.1mm—critical for parts that require precise assembly (P.EJ., electrical panels with connector holes).
Consistency and Repeatability: CNC programming ensures every part is identical—even for high-volume runs (P.EJ., 10,000 HVAC vents). No variation from manual alignment.
Geometrías complejas: Automatic tool changes let you create diverse features (agujeros, ranura, embossments) in one setup—eliminating the need for multiple machines.
Tiempo de configuración reducido: Turret punch presses store up to 40 herramientas, cutting setup time by 60–80% compared to manual punching (which requires tool changes between runs).
Increased Efficiency: High-speed punching (arriba a 600 HPM) and automated sheet feeders reduce cycle time—producing 3–5x more parts per hour than manual methods.
Versatilidad: Funciona con metales, plástica, compuestos, and acrylic—making it a one-stop solution for diverse sheet material projects.
Rentabilidad: Lower operational costs than laser cutting (no expensive laser tubes) and reduced labor costs (operación automatizada). Para carreras de alto volumen, it’s 20–30% cheaper than other processes.
High-Quality Surface Finish: Limpio, Bordes sin rebabas (≤0.05mm burr height) reduce the need for post-finishing—saving time and money.
Aplicaciones de la industria
Punching CNC is widely used across industries that rely on sheet metal or flat non-metal parts. Aquí están sus aplicaciones más comunes:
Industria | Usos comunes | Key Benefit of CNC Punching |
---|---|---|
Aeroespacial | Aluminum interior panels, stainless steel control boxes, composite brackets | Precision for safety-critical assembly |
Automotor | Mild steel body panels, aluminum trim pieces, galvanized steel battery boxes | High-volume consistency + rentabilidad |
Dispositivos médicos | Stainless steel equipment panels, copper electrical components, recintos de plástico | Bordes limpios + cumplimiento (ISO 13485) |
Fabricación industrial | Mild steel machine guards, aluminum control panels, composite conveyor parts | Durabilidad + eficiencia |
Electrónica | Disipadores de calor de aluminio, ABS plastic enclosures, copper busbars | Precision for component fitment |
Defensa | High-strength alloy armor plates, stainless steel equipment casings | Fortaleza |
Por ejemplo, in the architectural industry, our CNC-punched aluminum facade panels (with custom slot patterns) feature consistent hole spacing (± 0.1 mm) that ensures seamless installation—critical for large-scale building projects. En electrónica, our punched copper busbars (with precision holes for wiring) ensure reliable conductivity, reducing equipment failure rates.
Advanced Manufacturing Techniques in CNC Punching
To maximize efficiency, precisión, and versatility in CNC Punching, we leverage specializedtécnicas de mecanizado and optimized processes:
9.1 Core Punching Techniques
- Turret Punching:The most common technique—uses a rotating turret (with 10–40 tool stations) to hold different punches/dies (redondo, ranura, formación). The turret indexes to the required tool, and the punch descends to cut/form the feature. We use two turret types:
- Stationary Turret: The turret stays fixed; the sheet moves via X/Y axes (ideal for large sheets).
- Rotating Turret: The turret rotates to position tools; the sheet moves minimally (faster for small parts).
- Solicitud: High-volume parts with multiple features (P.EJ., HVAC vents with holes and slots).
- Nesting Optimization:Uses software (Lantek Nesting, SigmaNEST) to arrange multiple parts on a single sheet—minimizing material waste. Por ejemplo, we can fit 20 small electrical boxes on a 1500×3000mm mild steel sheet (VS. 15 with manual placement), Reducción de los desechos de 15% a 7%. We prioritize nesting based on part quantity (high-volume parts first) and feature orientation (aligning holes to reduce tool changes).
- Formación (Non-Cutting) Puñetazos:Uses specialized forming tools (instead of cutting punches) to shape the material without removing it. Common forming operations include:
- Realce: Creates raised features (P.EJ., logos on control panels).
- Flanging: Adds a folded edge (P.EJ., mounting tabs on enclosures).
- Louvers: Cuts and bends slits to create vents (P.EJ., heat sinks for electronics).
- Beneficio: Eliminates secondary forming operations (P.EJ., flexión), ahorrar tiempo.
- High-Speed Punching:Para pequeño, repetitive features (P.EJ., 2mm diameter holes in circuit boards), we use high-speed punch presses (arriba a 600 HPM) with servo-driven punches. The machine uses “gang punching” (punching multiple identical holes in one pass) and quick tool indexing to reduce cycle time.
- Solicitud: High-volume electronic components (P.EJ., copper busbars with dozens of small holes).
9.2 Supporting Technologies
Locating Pins: Ensure sheet alignment (± 0.05 mm) for repeatable feature positions.
Selección de herramientas & Mantenimiento:We match tools to material and feature type:
Round Punches: HSS for soft metals/plastics; carbide for hard metals (acero inoxidable, high-strength alloys).
Slot/Oblong Punches: Carbide-tipped for clean edges (crítico para piezas que requieren ajustes ajustados).
Herramientas de formación: Acero endurecido (for embossing) or polyurethane (for soft forming on plastics).We maintain tools via regular sharpening (every 5,000–10,000 hits) y recubrimiento (TiN coating for HSS tools to extend life by 30%).
Sheet Feeding Systems:To handle high-volume production, we use automated sheet feeders:
Stack Feeders: Load sheets from a stack (arriba a 50 sheets at a time) and feed them to the press table.
Coil Feeders: For continuous production (P.EJ., 10,000+ piezas/mes)—unroll coil material (up to 300m long) and feed it to the press.
Beneficio: Eliminates manual sheet loading, reducing labor costs and increasing consistency.
Coolant/Lubrication:For metal punching, we use light oil-based lubricants (applied via spray nozzles) a:
Reduce friction between punch and material (Extender la vida útil de la herramienta).
Prevent material galling (especially on stainless steel and aluminum).
Ensure clean cuts (reduciendo las rebabas).For plastics/acrylic, we use dry punching (no lubricant) to avoid residue buildup.
Fixture Design:Custom fixtures secure sheets during punching—critical for thin or flexible materials:
Aspirador: Hold thin aluminum/plastic sheets (≤1mm thick) para prevenir el movimiento.
Clamps: Secure thick steel sheets (≥5mm thick) during high-force punching.
Estudios de caso: CNC Punching Success Stories
NuestroCNC Punching services have solved sheet metal challenges for clients across automotive and electronics industries. A continuación hay dosproyectos exitosos showcasing our expertise:
Estudio de caso 1: Automotive Supplier (Mild Steel Battery Boxes)
- Desafío: El cliente necesitaba 10,000 mild steel battery boxes monthly for electric vehicles—each requiring 12 agujeros de montaje (8diámetro mm), 4 ventilation slots (10×50mm), and a flanged edge (for sealing). Their previous supplier used manual punching, which caused 15% of boxes to have misaligned holes (delaying assembly) y 8% waste due to poor nesting. Lead time was 3 semanas, which threatened the client’s EV production schedule.
- Solución: We used a 40-station turret punch press with automated stack feeders. We optimized the design with nesting software (fitting 12 boxes per 1500×3000mm sheet, reducir los desechos a 6%) and programmed the press to punch holes, cut slots, and form the flange in one setup. We used carbide punches for clean edges and light lubrication to prevent galling. In-line vision systems checked hole position (± 0.1 mm) after punching, rejecting out-of-tolerance parts immediately.
- Resultados:
- Misalignment rate dropped from 15% to 0.5%—only 50 boxes failed per month (VS. 1,500 previously).
- Material waste decreased from 8% to 6%—saving the client $12,000 monthly in steel costs.
- Lead time shortened from 3 semanas para 10 days—helping the client meet their EV launch deadline.
- Testimonial del cliente: “CNC punching transformed our battery box production. The consistent hole alignment eliminated assembly delays, and the nesting optimization saved us thousands. We’ve expanded our order to include other sheet metal parts.” — Mark T., Automotive Production Manager.
- Before and After: Manual punched boxes had uneven slot widths and misaligned holes; CNC-punched boxes featured uniform slots and perfectly positioned holes that fit EV battery assemblies seamlessly.
Estudio de caso 2: Electronics Manufacturer (Aluminum Heat Sinks)
Testimonial del cliente: “The CNC-punched heat sinks are perfect—fast, asequible, and burr-free. They’ve become our standard for all aluminum cooling components.” — Jennifer L., Electronics Component Buyer.
Desafío: El cliente necesitaba 5,000 aluminum heat sinks monthly for computer processors—each requiring 20 louvered vents (5×20mm) y 4 agujeros de montaje (4diámetro mm). The heat sinks required a burr-free finish (≤0.03mm burr height) to avoid damaging circuit boards, and the client needed a 2-week lead time. Their previous supplier used laser cutting, which was slow (3 minutes per heat sink) y costoso.
Solución: We used a high-speed turret punch press (400 HPM) with louver forming tools. We programmed the press to punch holes and form louvers in one setup (Tiempo de ciclo: 45 seconds per heat sink) and used HSS punches (ideal for soft aluminum) with minimal lubrication. Post-punching, we used a vibratory deburring machine to remove any small burrs (ensuring ≤0.02mm burr height). We nested 25 heat sinks per 1200×2400mm aluminum sheet (desperdiciar: 5%).
Resultados:
Production speed increased by 4x (de 3 intermediar 45 seconds per heat sink).
Cost per heat sink decreased by 35% (VS. corte con láser).
All heat sinks met the burr requirement—no circuit board damage reported.
Challenge Overcome: Laser cutting was too slow for high-volume; CNC punching’s forming tools and high speed solved both speed and cost issues.
Why Choose Our CNC Punching Services?
With numerous CNC punching providers, here’s what sets us apart as a trusted partner for sheet metal projects:
Commitment to Quality: Somos ISO 9001, AS9100, e iso 13485 certified—our quality control processes asegurar 99.8% of parts meet your specifications. We also provide full traceability (each batch’s nesting plans, informes de inspección) for compliance.
Expertise in CNC Punching: Nuestro equipo tiene 16+ years of specialized experience—we master turret punching, nesting optimization, and forming techniques. Our engineers are certified in AS9100 (aeroespacial) e iso 13485 (médico) and can solve complex challenges (P.EJ., burr-free punching for electronics, precision forming for aerospace parts) that other providers struggle with.
Experience in Various Industries: Hemos servido 600+ clientes entre 10 industries—from automotive OEMs to architectural firms. This cross-industry experience means we understand sector-specific needs: FDA compliance for medical panels, corrosion resistance for architectural parts, and precision fitment for electronics.
High-Quality Equipment: We invest in state-of-the-art CNC punch presses—10 turret presses (20–60 tons), 5 high-speed punch presses (arriba a 600 HPM), and automated sheet feeders. All machines are calibrated weekly (using laser alignment tools) to maintain ±0.1mm precision.
Excelente servicio al cliente: Nuestro equipo está disponible 24/7 to support your project—from design consultation (optimizing parts for punching) Para el seguimiento posterior a la entrega. We offer free nesting analysis (showing how to minimize material waste) and free sample punching (arriba a 5 regiones) so you can verify quality before placing large orders. Para proyectos urgentes (P.EJ., automotive production shortages), we assign a dedicated project manager.
Tiempos de respuesta rápidos: Our optimized processes deliver industry-leading lead times:
Prototipos (1–100 piezas): 1–3 días
De bajo volumen (100–1,000 partes): 3–7 días
De alto volumen (1,000+ regiones): 7–14 daysFor rush orders (P.EJ., emergency HVAC replacements), Podemos entregar 1,000+ parte 4 days by running machines 24/7.
Soluciones rentables: We help you save money through:
Nesting optimization: Reduces material waste by 5–10% (critical for expensive metals like stainless steel).
Automated operation: One operator runs 2–3 machines (reducir los costos laborales mediante 40%).
Volume discounts: 10% off orders over 5,000 parts and 15% off orders over 20,000 parts—ideal for automotive/consumer goods high-volume runs.