10 min read
Materials
→Thickness tolerance and its effect on CRCA parts
CRCA thickness tolerance and its effect on bends, weight, fit and weld: the mill band, the flat-pattern arithmetic and the inspection that catches a coil shift.
Ganesh engineering library
Sheet metal, explained by the people who make it
377 guides on stamping, laser cutting, bending, welding, coating and the parts we build for lift, power, data centre, railway and farm equipment. Every article is reviewed by the engineering team before it is published.
- 377
- published guides
- 14
- topic hubs
- 3 Nov 2026
- last technical review
Browse by topic
Nine clusters, each mapped to a capability or product page.
32Stamping, presses and press toolsPressed, punched and deep drawn sheet metal parts, the tooling that makes them, and the DFM rules that decide whether a part suits a press at all.29Laser cutting and sheet metal fabricationFibre laser cutting, nesting, edge quality, tolerance and the cost drivers behind a cut part, including long panels cut on the 40 ft × 16 ft bed.38Bending, welding and finished assembliesPress brake bending, bend allowance, fixtures, robotic MIG welding, distortion control and the tolerances a finished welded assembly can actually hold.28Surface treatment and powder coatingSeven-tank pretreatment, phosphating, shot blasting, powder and wet paint selection, film thickness and the failure modes that show up two monsoons later.22Elevator and lift componentsCounterweight frames, car frames, slings, guide rail brackets, door panels and controller enclosures made to lift OEM drawings.24Genset, canopy and acoustic enclosuresDG set canopies, acoustic panels, louvres, base frames, skid bases and control panel enclosures, engineered for weather, access and noise.28Data centre racks and electrical enclosures19-inch rack frames, mounting rails, perforated doors, blanking panels, PDU brackets and the electrical enclosures around them.16Tractor, forklift and material handlingTractor panels and brackets, forklift overhead guards, counterweight covers, mast parts and material handling components built for vibration and abuse.16Railway, furniture and infrastructureRailway coach panels, underframe brackets, fittings, metal furniture frames, shelving and signage, where standards and traceability carry as much weight as the part.38Materials and gradesGrade selection for CRCA, stainless, aluminium, brass and copper: formability, thickness, corrosion and what the mill certificate actually guarantees.30Standards and complianceWhich standard applies, what it actually covers, and the evidence a buyer should ask for: ISO, IEC, EN, RDSO and material certification.44Design and CADDesign rules, CAD hand-off, bend allowances, tolerance stacks and the drawing notes that decide whether a part is made right first time.4Applications and casesApplication-led problems from lift shafts, genset sites, data halls, railway coaches, farms and warehouses, and how the part is designed around them.28Plant, quality and sustainabilityHow the plants run: quality systems, inspection, calibration, pretreatment chemistry, effluent, maintenance, energy and scrap.
All guides, page 26
Search the library →11 min read
Tractor and forklift
→Operator platform manufacturing: deck forming and welding
Operator platform manufacturing for forklifts and tractors: deck thickness, rib geometry, blanking tonnage, weld sequence and the flatness limits that matter.
10 min read
Plant and quality
→Press tool maintenance records: what a die history needs
What a press tool maintenance record must hold: stroke count, grind depth, clearance, burr reading and spring changes, and how each entry prevents a die crash.
10 min read
Materials
→430 stainless corrosion and finish compatibility
430 stainless corrosion and finish compatibility: PREN 17 limits, why powder bonds better than on 316L, why galvanising is impossible, and the masking rules.
11 min read
Laser cutting
→Laser cutting versus waterjet for sheet metal
Cut edge, kerf, tolerance and thickness limits compared for laser and abrasive waterjet, with the crossover numbers that decide a sheet metal part.
10 min read
Genset and canopies
→Laser-cut components for genset canopies: panel limits
Laser-cut components for genset canopies: louvre and perforation open area, panel thickness, base frame, tooling crossover and coating that lasts.
9 min read
Tractor and forklift
→Tractor fuel tank bracket: design, materials and manufacturing
Tractor fuel tank bracket design: the 5 g load case, strap and weld stresses, material and coating choices, and the cut-bend-weld-coat route.
10 min read
Coating
→Edge quality and coating life: where the corrosion clock starts
A sharp cut edge carries 40–60% of the face film, and a burr beside it wicks water 147 mm. How edge geometry sets the year the coating fails.
10 min read
Design and CAD
→Rivet nut versus weld nut: the joint choice for thin sheet
Rivet nut versus weld nut for thin sheet: the preload a bolt asks for, the pull-out each nut delivers, and the coating and service rules that decide it.
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