CNC Punching
Build ventilation, mounting points, slots, and knockouts into your sheet-metal parts. K-Display combines CNC punching with in-house forming, finishing, and assembly to turn featured panels into finished components.
Repeat the feature across the panel
CNC (computer numerical control) punching uses a punch and matching die to create features at programmed positions in sheet metal. It is especially useful when a panel repeats the same openings. Tooling can also create retained knockouts and suitable raised or recessed details, adding function beyond a simple cutout.
Repeated openings can share tooling across a panel. Feature shape and spacing help determine whether punching is practical or whether laser cutting better suits the geometry.
Ventilate, mount, and provide access
From a repeated vent pattern to a removable cable-entry knockout, punched features give panels a job to do. Their placement needs to work with the bends and components around them.
- Panels and chassis parts
- Enclosures and cabinets
- Repeat holes, slots, and knockouts
- Formed sheet-metal features
The pattern is only part of the job
We offer punching, laser cutting, and stamping, so the process can follow the part rather than the other way around. We also form, coat, and assemble in-house, keeping feature locations connected to the finished product.
Match the process to the features
We compare geometry, repetition, tooling, and quantity to establish where punching makes sense alongside laser cutting or stamping.
Produce the panel pattern
Programmed strokes create the required openings and suitable formed details, accounting for the material, visible face, and later bends.
Complete the component
Punched parts can move into forming, finishing, hardware installation, and assembly without a handoff to another supplier.
Feature size, spacing, and tooling
The punch shears the sheet against the die, releasing an offcut called a slug. Overlapping strokes, known as nibbling, can create larger contours. Feature shape, spacing, material, and thickness determine the tooling needed; complex contours may be better suited to laser cutting.
Provide the material, thickness, tolerances, and quantity. Identify features that must stay fixed and patterns that can be adjusted to meet a functional requirement.
Make room for bends and mounting points
Dense hole patterns can introduce stress and distort a sheet. Explain the ventilation or open-area requirement as well as the hole layout; there may be room to adjust hole size or spacing while preserving the intended function.
Leave room to evaluate features near bends. Openings too close to a bend can distort during forming, so include both the flat geometry and the finished shape. Mark mounting locations that must align with mating parts after bending.
Call out the visible face, edge requirements, and any retained knockouts or formed details. Laser cutting may suit contours that would otherwise need many tool changes or overlapping punch strokes. Include finish and assembly needs when comparing the options.
Separate fixed mounting locations from a ventilation pattern that can change. This gives room to adjust hole spacing around the bend while preserving the panel’s function.
For your CNC-punching quote
Include the feature pattern and finished shape. A sketch or PDF is enough to begin discussing the part.
- Drawing revision
- Current model, flat pattern, drawing, or sketch.
- Material
- Grade, thickness, and any surface requirements.
- Quantity
- Order quantity and expected repeat demand.
- Critical features
- Tolerances, mounting relationships, knockouts, and formed details.
- Downstream work
- Bends, finish, hardware, assembly, and delivery target.