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Teklan Machining
Workshop since 1997
Mecanizados de Chapa Teklan, S.L., started its activities in 1997 in a space of approximately 200 m2..
New Machining Workshop in 2017
At the beginning of 2017, we moved to new facilities, and after successive expansions, Teklan machining workshop is currently located on a private plot of 12,000m2, of which 6,000m2 are built.
This allows us to have well-defined work areas that contribute to a smooth workflow and process efficiency: Raw material unloading area, Raw material storage, Production area, and Final product storage and dispatch area.
Thanks to these new facilities and machinery, we are able to handle large series with just-in-time deliveries, as well as small series with very short lead times.
Since the establishment of Teklan machining workshop, our purpose has been to not just be a supplier but a collaborator. We aim to assist and learn from our clients, adapting our technology to their products and determining the most efficient process for our clients to achieve the best price-performance ratio and maximize their benefits.
We adapt to changes by constantly studying emerging technologies in the market, seeking our evolution. We invest in being competitive, we invest in the future. Our staff, in addition to their extensive experience, undergoes constant training. But what sets us apart is our level of commitment.
In a highly competitive market, our challenge is to become a benchmark and create a loyal collaboration. We work for our clients; their urgencies are our urgencies, their commitments are our commitments.
Frequently Asked Questions
How is dimensional consistency ensured when a part requires laser cutting/punching, bending/panelling, and final machining?
Dimensional accuracy is guaranteed by combining process sequencing, common references, and metrological control throughout the entire production chain.
- Agreed process sequence (DFM): The production flow is validated — cutting (laser/punching) → forming (bending/panelling) → functional machining → welding/assembly → finishing. Critical holes and threads are left for post-forming operations to ensure proper positioning and perpendicularity.
- Common datums and clamping points: Reference surfaces A-B-C and control points are defined to remain consistent across all stages. Dedicated jigs or fixtures are designed when geometry requires repeatable positioning.
- Deformation compensation: During bending/panelling, developments (K-factor/BD) and bending order are adjusted to minimize springback; final machining corrects the remaining functional tolerances.
- First Article Inspection (internal FAI): Before launching the production batch, the first unit is verified dimensionally according to the drawing (angles, hole spacing, threads, support faces), and offsets are corrected if necessary.
- Serial control plan: In-process self-checks, intermediate verifications at critical operations, and drawing revision tracking prevent version errors.
- Delivery and traceability of kits: Each part is labelled by reference/work order, with a detailed packing list and, when required, control photos of key points.
Result: A ready-to-assemble part with full dimensional coherence from cutting to final machining, in compliance with ISO 9001:2015.
What is the scope of sheet metal machining offered?
Machining is integrated after cutting (laser/punching) and forming (bending/panelling) to finish functional areas and deliver parts ready for assembly.
- Covered operations: drilling, tapping, countersinking, reaming, and light facing on support surfaces.
- Typical materials: carbon steel, stainless steel, aluminium, brass, and copper — consistent with cutting and forming lines.
- Typical applications: covers and enclosures with through/countersunk holes, brackets and supports with functional threads, lightweight chassis with flat seating surfaces, and panels with combined hole patterns (punching/laser + final machining).
- Usage criteria: critical holes and threads are machined after bending/panelling to ensure proper positioning, perpendicularity, and flatness of the assembly.
- Quality and verification: dimensional inspection according to drawings, first article validation when required, and intermediate checks during critical operations, in compliance with ISO 9001:2015.
- Delivery and workflow: possibility of integrating surface finishes and subassembly mounting; parts are labelled per kit and accompanied by a detailed packing list for assembly line integration.
What materials and alloy families are supported in integrated machining?
Integrated machining — following laser/punch cutting and bending/panelling — supports the most common metallic families used in light and medium sheet metal fabrication:
- Carbon steel (e.g., S235/S355): drilling, tapping, and countersinking are performed without issue. It is recommended to machine after bending to ensure proper hole spacing and perpendicularity.
- Stainless steel (AISI 304/316): requires the appropriate tooling and feed control to prevent work hardening; threads and support faces are verified with gauges.
- Aluminium (series 1xxx/5xxx; e.g., 1050/5083): clean machining, but sensitive to fine burrs; deburring is recommended on functional holes, and care must be taken to avoid marks on visible parts.
- Brass and copper: suitable for precision drilling and tapping; soft jaws and custom fixtures are used to prevent deformation in thin sheet, and surfaces are protected when visible.
Process criteria:
- Recommended sequence: cutting → forming → functional machining (critical holes/threads) → welding/assembly → finishing.
- Common datums: shared reference points between operations to ensure repeatable clamping and alignment.
- Quality controls: dimensional inspection according to drawings and first article validation when applicable, in compliance with ISO 9001:2015.
If the part uses another compatible alloy, the detailed drawing and material/thickness data are reviewed to confirm feasibility and process adjustments before launching the production batch.
How is quality controlled in critical machining operations?
Quality control is based on predefined inspection points indicated in the drawing, proper measurement methods for each feature, and full traceability under ISO 9001:2015.
- Pre-production (DFM + first article): drawing and process sequence review; first-part manufacturing and verification of hole spacing, pre-thread diameters, perpendicularity, and flatness of support faces.
- Threaded holes: control of pre-drill diameters, verification with go/no-go thread gauges, and initial screw-in torque testing when applicable.
- Precision holes and countersinks: measurement of diameter and concentricity, countersink depth/angle, and position relative to datums A-B-C.
- Support faces and seating areas: flatness verification using straightedge/gauge and height control with a probe; perpendicularity check against bends or functional edges.
- In-process controls: operator self-inspections at agreed frequencies (e.g., every X parts or after tool change) and re-verification following tool replacement.
- Traceability and revision control: work order identification with drawing revision and blocking of outdated versions to prevent manufacturing errors.
- Final verification and documentation: recording of critical feature measurements and conformity confirmation before packaging/shipping; when required, dimensional inspection reports are attached.
Result: threads that fit perfectly on the first try, flat seating surfaces, and hole positions within tolerance — parts ready for assembly with no rework required.
What documentation is required for a fast and accurate quotation?
To quote efficiently and manufacture right the first time, provide complete drawings and process data:
- Drawings and files
- Dimensioned PDF with critical tolerances and revision level (e.g., Rev. B).
- DXF/DWG of flat pattern (for cutting) — no open splines, units in mm, and organized layers (outline, holes, engravings).
- STEP/IGES optional for parts with bending/panelling, used to validate developments and machining accessibility.
- Clear naming convention:
- Material and geometry
- Material/alloy (e.g., S235, AISI 304, Al 5083) and thickness.
- If applicable: internal bend radius or desired V-die; for machining: pre-thread diameters and hole depths/countersinks.
- Scope and quantities
- Required operations (cutting, punching, bending/panelling, machining: drilling/tapping/countersinking, welding/assembly, finishing).
- Quantities per reference (prototype, first batch, annual series) and repetition
- Quality and verification
- Critical inspection points (hole spacing, flatness, perpendicularity).
- Documentation requirements (e.g., dimensional report, 3.1 material certificate if applicable).
- Finishes and delivery
- Deburring/polishing, coatings (painting, galvanizing, anodizing) and expected visual level.
- Labelling/packaging (by kit, ESD if applicable) and packing list
- Logistics and deadlines
- Delivery address, transport restrictions (Euro-pallet, height), target date, and priorities (urgent jobs or product launches).
Tip to speed up the process: include a suggested operation sequence (cutting → forming → machining → welding → finishing) and highlight functional tolerances on the PDF. With this information, cost and lead time estimation become faster — and manufacturing is correct on the first try.
Can only the machining phase be assumed if the part already arrives cut or bent?
Yes — provided that reference and accessibility conditions are clearly defined. To quote and manufacture without deviations, the following requirements must be met:
- Defined clamping references: datums A-B-C indicated on the drawing and present on the part after cutting/bending (repeatable faces, edges, or reference holes).
- Flatness and stability: declaration of sufficient flatness and rigidity for proper clamping; if the part is thin or includes pre-formed housings, dedicated fixtures or jigs may be required.
- Accessibility to machining areas: confirmation that holes, threads, and countersinks are reachable in the final geometry (no interference from bends or overlaps).
- Complete documentation: dimensioned PDF with functional tolerances, DXF/DWG of the contour (if applicable), and STEP/IGES when complex bends are present, to validate clamping and tool paths.
- Declared operation sequence: confirmation of what has already been done (cutting/bending) and what remains for machining; critical holes and threads must be scheduled post-forming to ensure position and perpendicularity.
- First article verification: validation of the first part (dimensional inspection as per drawing) is recommended before launching serial production, in accordance with ISO 9001:2015.
- Impact on cost and lead time: if datums are missing or the part cannot rest stably, specific fixturing and additional setup time will be required; in many cases, consolidating cutting + forming + machining under a single supplier reduces variability and delivery time.
Conclusion: machining “only” is feasible when the part arrives with repeatable references, controlled flatness, and sufficient access; otherwise, integrating the entire process within the same production chain is safer and more cost-effective.
What post-machining finishing and supply options are offered?
The goal is to deliver a part that is fully ready for assembly. After machining, the following services can be integrated:
- Manufacturing finishes: deburring and polishing to remove burrs and improve edge quality or visual appearance on exposed parts.
- Industrial coatings (via partners): management of painting, galvanizing, or anodizing/passivation according to project specifications, including verification coupons when required.
- Subassembly integration: assembly of components (e.g., bent parts + inserted elements) to reduce time on the client’s production line.
- Identification and documentation: labelling by reference or kit, detailed packing list, and control photos when applicable.
- Packaging for transport: European palletization, part separation to prevent marks on functional surfaces, and protective materials adapted to the final finish.
- Logistics and scheduling: coordinated delivery within the production window (cutting → forming → machining → finishing), prioritizing critical or urgent series when material availability allows.
Result: fewer handling operations at the client’s plant, lower risk of rework, and more predictable lead times — by centralizing post-processing and supply within a single, streamlined production flow.
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