Aluminum Sheet Metal Parts

Aluminum Sheet Metal Parts — Custom Enclosures, Panels, Covers, and Formed Components

Aluminum Sheet Metal Parts manufactured by Electrical Accessories India include a broad range of precision-formed, punched, laser-cut, and bent aluminum components used in electrical panel assemblies, switchgear enclosures, bus bar compartment covers, instrument panel frames, cable tray components, junction box bodies, heat sink mounting plates, and structural hardware for the power and electrical industry. Alloys used include 5052-H32, 5083-H111, 6061-T6, 3003-H14, and 1100-H14, in sheet thicknesses from 0.8 mm to 12 mm and component sizes from 50 mm to 3,000 mm in the largest dimension. Price: US$ 8.80/Kilogram

Product Overview

Sheet Metal Operations — From Blank to Finished Part

Aluminum sheet metal fabrication at Electrical Accessories India encompasses the complete sequence of primary and secondary operations: CNC laser cutting and waterjet cutting for precise blank and outline profiling; CNC turret punching for high-volume hole patterns, louver openings, cable entry knockouts, and gland plate perforations; CNC press brake forming for precise bend angles and tight bend radii on enclosure flanges, mounting brackets, and cable tray rails; roll forming for continuous profiles (cable tray sides, bus duct covers, DIN rail extrusions converted to sheet-formed replacements); spot welding and TIG welding for multi-part fabricated assemblies; and deburring (vibratory, belt, or manual) for all cut and punched edges. The choice of cutting process — laser vs. punch — depends on the balance of hole density (punch press is faster for dense hole patterns), edge quality requirements (laser gives kerf-free smooth edges for sealing surfaces), and material thickness (laser for up to 12 mm; punch for 0.8–6 mm standard).

Aluminum Enclosures and Junction Box Bodies

Sheet metal aluminum enclosures (junction boxes, distribution boxes, terminal box bodies, instrument housings, and control panel frames) are fabricated from 5052-H32 or 6061-T6 sheet (1.5–3 mm thickness for standard junction boxes; 3–6 mm for industrial panel frames) by CNC laser cutting, press brake forming, TIG welding of corners, and surface treatment. IP ratings from IP54 to IP67 are achieved by: precise flange flatness (≤0.3 mm per 500 mm for O-ring sealing), correct O-ring groove dimensions (per IEC 60529 sealing requirements), and continuous TIG weld sealing of structural joints. Cover plates with cable gland knock-outs (to customer gland size/pattern requirements) are punched and formed as matching enclosure covers. Hinges, hasps, quarter-turn latches, and lifting handles are integrated as required by the OEM or project specification.

Bus Bar Compartment Covers and Shrouds

In LV switchgear and bus duct systems, aluminum sheet metal covers protect live bus bars (copper or aluminum phase bars and neutral bars) from accidental contact and provide IP2X (finger-safe) or IP4X (tool-protection) in-panel segregation per IEC 61439-1. Bus bar compartment covers are manufactured from 1.5–3 mm 5052-H32 or 6061-T6 aluminum sheet by CNC punching (for ventilation perforations, if required) and press brake forming to the required cross-sectional profile. These covers are lighter than equivalent steel covers and can be anodized in clear or tinted finishes for identification of HV vs. LV bus compartments. Bus bar covers for outdoor switchgear and ring main units (RMUs) are manufactured from 3–5 mm 6061-T6 for additional rigidity, with powder coating for UV and weather resistance in outdoor service conditions.

Gland Plates and Cable Entry Panels

Cable gland plates (gland entry panels, gland box base plates) are a specialized aluminum sheet metal product used at the bottom of switchgear panels, motor control centers, junction boxes, and transformer terminal compartments where multiple cable glands need to be mounted in a organized pattern. Our CNC punch press capability allows production of gland plate blanks with any combination of metric (M16–M75) and PG (PG11–PG48) sized gland holes in any custom layout, from a single gland hole to 50+ holes per plate. Standard blank sizes (300×300 mm to 600×400 mm) are available from stock; custom sizes punched to order. Material: 3 mm 5052-H32 (standard); 4 mm 6061-T6 (heavy cable gland applications where mechanical gland body tightening might distort thinner plates).

Heat Sink Mounting Plates and Power Electronics Hardware

Power electronics assemblies (VFDs, rectifiers, UPS, solar inverters, battery chargers) require aluminum sheet metal components for: heat sink base plates (to which power semiconductor modules are mounted), DC bus bar mounting plates (for bus bar capacitors and fuse assemblies), module mounting frames (for stacking power modules in multi-level converters), and control board mounting brackets. These components are machined from aluminum plate (6061-T6, 5–20 mm) and are characterized by: tight flatness requirements on heat sink base plates (≤0.05 mm over the module mounting area to ensure thermal conductance), precisely located and tapped M4–M8 mounting holes for semiconductor modules, and specialized surface treatments (thermal interface material compatibility, anodize finish that does not degrade thermal conductance). We produce these components to power electronics OEM drawings with CMM-verified flatness and dimensional reports.

Lightweight Panel Frames and Raceway Covers

Control panels, relay panels, and marshalling cubicles in power substations and process control systems use aluminum sheet metal frames (front panels, sub-panels, back plates, instrument mounting frames) as alternatives to carbon steel or stainless steel for applications where weight reduction and corrosion resistance are priorities. Aluminum 5052-H32 instrument panel frames (3 mm thickness) are approximately 65% lighter than equivalent 3 mm carbon steel panels. Raceways and cable duct covers — used to close cable management channels in switchgear panels — are produced from 5052-H32 sheet by roll-forming or press-brake forming to standard DIN 43671 or IEC-standard duct profiles. Custom raceway widths and depths are available without minimum order constraints on standard-thickness sheet profiles.

Formed Aluminum Cable Tray Components

Cable tray systems (ladder type, perforated bottom, solid bottom, wire mesh) are a major application area for aluminum sheet metal fabrication. Cable tray components manufactured include: tray side rails (formed from 1.5–3 mm 5052-H32 strip), splice plates (for tray section-to-section connections), fittings (bends, tees, crosses, reducers, risers), covers (solid and ventilated), and supports (trapeze hangers, wall brackets, floor supports). Aluminum cable tray is preferred over galvanized steel in corrosive environments (coastal, offshore, chemical) and where weight reduction is important (high-rise buildings, suspended ceilings, offshore modules). We manufacture aluminum cable tray components to standard NEMA VE-1 and IEC 61537 dimensions, and to custom profiles per project specification.

Key Features

• CNC laser cutting, CNC punching, press brake forming, roll forming, TIG welding
• Alloys: 5052-H32, 6061-T6, 3003-H14, 5083-H111, 1100-H14
• Thickness range: 0.8 mm to 12 mm sheet; up to 20 mm plate (machined flat)
• Component size: 50 mm to 3,000 mm max dimension
• Hole patterns: CNC punched M4–M75 gland holes, any pattern
• IP54 to IP67 enclosures with O-ring groove forming
• Surface: Natural, Anodize Type II/III, Powder Coat, Chromate, Painted
• Laser cut edges: kerf-free, suitable for sealing and plating
• ISO 9001:2015 certified; full dimensional inspection with reports
• Single-source supply: cutting + forming + welding + finishing + packaging

Technical Specifications

Alloy Properties Comparison

International Alloy Equivalents

Product Types and Variants

Applications in Industry

Manufacturing Process

Aluminum sheet metal parts production begins with procurement of certified coil or sheet stock from IS/ASTM-certified mills. CNC programs (DXF-to-machine code conversion) are generated from customer 2D drawings or DXF files. CNC laser or turret punch cutting produces flat blanks with all holes and perimeter profiles. Press brake operators form the blanks to the required profile using CNC-controlled ram-depth and back-gauge programs, ensuring bend angle accuracy. Multi-bend enclosures are formed in sequence, with intermediate checks on the first article before production run. TIG welding (where specified) joins panels to form enclosed box bodies; weld integrity is checked by visual inspection, liquid penetrant test (for pressure-rated enclosures), and dimensional check. After forming and welding, parts are deburred, cleaned, and sent for surface treatment (anodizing, powder coating, or chromate). Final inspection includes dimensional verification on critical features, IP test for sealed enclosures, and visual check for surface quality.

Quality Standards

Why Choose Electrical Accessories India?

• Complete Sheet Metal Capability — laser, punch, form, weld, finish, inspect, pack in one facility
• IP-Rated Enclosure Expertise — IP54 to IP67 enclosures produced and tested in-house
• Alloy Range — 1100 to 5083 alloys covering all applications from cosmetic to structural to marine
• Custom to Drawing — no minimum catalog order; all parts produced to customer-specific dimensions
• Price: US$ 8.80/Kilogram — competitive for OEM and project quantities
• DXF/STEP to Part — fast turnaround from CAD file to first article; 5–10 business days
• Global Export — export-packed and documented for 40+ countries

Frequently Asked Questions

Q1. Can you produce aluminum enclosures to IP67 rating?

Yes. IP67 (dust-tight, immersion-protected to 1 meter for 30 minutes) requires O-ring sealing of the enclosure lid-to-body joint. We machine or form the O-ring groove to the required cross-section and groove dimensions per IEC 60529, and test-fit with the specified O-ring grade (silicone, EPDM, or Viton depending on chemical exposure). IP67 verification test is performed on sample enclosures with pressure/vacuum decay testing before production release.

Q2. What is the minimum thickness for laser-cut aluminum sheet metal parts?

Minimum practical thickness for CNC laser cutting of aluminum: 0.8 mm. For CNC punch press: 0.8 mm. For press brake forming: 0.5 mm (very light gauge, requires care to avoid wrinkling). Standard minimum for industrial electrical enclosures: 1.5 mm for small boxes, 2 mm for large panels.

Q3. Can you TIG weld aluminum sheet metal enclosures?

Yes. TIG (GTAW) welding of aluminum enclosures is performed using AC TIG welders with high-frequency start and 99.99% pure argon shielding gas. 5052-H32 and 6061-T6 are weldable alloys. 1100-H14 and 3003-H14 also weld well. Weld filler used: ER4043 (for 6061 base) or ER5356 (for 5052 and 5083 base). Post-weld heat treatment (solution treatment + aging back to T6) is required for 6061 if original T6 strength is needed at the weld zone — otherwise, the weld HAZ retains annealed-level strength.

Q4. What surface treatment is best for outdoor aluminum enclosures?

For outdoor electrical enclosures in general environments: polyester powder coat (60–80 µm) over chromate conversion coat provides the best long-term weather resistance. For coastal/marine environments: marine-grade epoxy powder coat over hard anodize base. For exposed metal parts (handles, hinges) in coastal environments: Type III hard anodize (25–50 µm) provides superior salt spray resistance (2,000+ hours in ASTM B117 test) without the risk of powder coat chipping.

Q5. Can you match an RAL color for powder-coated aluminum enclosures?

Yes. We can match any standard RAL, RAL Design, or Pantone color for powder coating. Custom color matching (from physical sample) is available for minimum 50 kg of powder coat material per color. Standard lead time for custom colors: 2 weeks additional vs. standard RAL colors (which are typically in stock).

Q6. Do you offer aluminum sheet metal DIN rail back plates?

Yes. DIN rail mounting plates (back plates) for control cabinets are produced from 3003-H14 or 5052-H32 aluminum sheet (1.5–2 mm) with DIN 35 rail slots and M4/M6 mounting holes in the required pattern. Available in standard sizes (to fit 400 mm to 1,200 mm wide cabinets) or custom sizes per cabinet manufacturer’s drawing. Anodized or natural finish.

Q7. What is your maximum enclosure size for aluminum fabrication?

Standard maximum enclosure size: 1,200 mm × 1,000 mm × 500 mm (W×H×D). Larger panels (up to 2,400 mm × 1,200 mm) are produced by bolted assembly of multiple formed sections. For substation marshalling cubicles and large relay panels, we supply multi-section aluminum panel kits for site assembly.

Q8. Can you provide complete Bill of Materials (BOM) pricing for a substation project?

Yes. For EPC contractors and project buyers, we offer complete BOM pricing covering all aluminum sheet metal parts in the project: junction boxes, gland plates, cable tray fittings, conduit brackets, and miscellaneous hardware. Submit the project drawing package and BOM list; we respond with unit prices and project lead time within 3–5 business days.

Q9. Are your aluminum sheet metal parts RoHS compliant?

Yes. All aluminum alloys we use (5052, 6061, 3003, 5083, 1100) are inherently free of RoHS-restricted substances (lead, cadmium, mercury, hexavalent chromium, PBB, PBDE). Chromate conversion coating (trivalent chromium, Cr³⁺ — not Cr⁶⁺) used for pre-treatment before powder coating is also RoHS and REACH compliant. RoHS declarations available on request.

Q10. What is the lead time for custom aluminum sheet metal parts?

For parts with no new tooling (CNC-programmed from drawing): 2–3 weeks for prototype/first article. For production quantities: 3–5 weeks. For parts requiring custom press brake tooling or special punch shapes: add 1–2 weeks for tooling. Rush delivery (1 week) available for urgent requirements at premium lead time charge.

Equivalent Terms in Other Languages

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Get a Quote — Aluminum Sheet Metal Parts

Submit your 2D drawing (PDF, DXF) or 3D model (STEP) with material grade, thickness, surface finish, quantity, and delivery location. For project BOMs, send the complete BOM list.

Price: US$ 8.80/Kilogram | Lead Time: 2–5 weeks | Gujarat, India | Global Export

Email: info@elecaccs.com | Website: https://elecaccs.com/aluminum-parts/

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