Ganesh Multitech EngineeringGANESH MULTITECHENGINEERING PVT. LTD.

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 32

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10 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-DES-968RFQ PACKCONTAINER · FOB → DAPINSPECTIONLANDED COSTFOBgoods at portCIF+ freight + insuranceDUTYon CIF valueDAPlanded at siteLANDED COSTSUPPLY CHAINLEAD TIMEDRAWING PACKSHIPMENTDUTY ON CIFRFQ FIELDS9DOCSmill cert + CoCTERMSIncoterms 2020PROCESS ROUTERFQDFMQUOTETRANSFERSHIPPART / PROCESSDESIGN AND CADMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Design and CAD

Laser-cut hole limits: aspect ratio and minimum diameter

Laser-cut holes stop being round and burr-free below about one diameter deep. Minimum diameter, aspect ratio, taper and spacing by thickness, plus the callout to use.

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10 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-LAS-12040 ft × 16 ft BED · 12 kW FIBREBEAM DETAILKERF & BEAM DETAILN₂ ASSIST · OXIDE-FREE EDGEBED LENGTHBED WIDTHNEST YIELDKERFSINGLE-PIECE CUTSOURCE12 kW fibrePLATEto 20 mmEDGEN₂ assistPROCESS ROUTEDXFNESTCUTDEBURRBENDPART / PROCESSLASER CUTTING FABRICATIONMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Laser cutting

Deburring and edge quality after laser cutting

What sets edge quality after laser cutting, which burrs matter for coating and welding, thickness limits on a 12 kW fibre laser, and how to specify deburring.

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11 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-RAI-743COACH INTERIOR PANEL · RDSOFIXING CENTRES FROM VEHICLE DATUMPANEL SECTIONPANEL SECTION · FINISHMILL CERT · BATCH TRACEPANEL LENGTHHEIGHTWINDOW CUTFIXINGFILM BUILDEVIDENCEmill certsINSPECTIONin-processFINISHpowder / brushPROCESS ROUTECUTFORMWELDFINISHTRACEPART / PROCESSRAILWAY FURNITURE INFRASTRUCTUREMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Railway and infrastructure

Cold store panel design: failure modes and the fix

Cold store panel design for the steelwork: thermal movement, vapour seals, door-frame bridges and the numbers that stop ice, buckling and condensation.

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11 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-GEN-541ACOUSTIC CANOPY · DG SETSKID BASE · LIFTING POINTSINTAKEEXHAUSTPANEL SECTIONPANEL SECTION · LININGFREE AREA SET BY LOUVRECANOPY LENGTHHEIGHTLOUVRE BANKACCESS DOORLININGBASE FRAMEwelded skidLOUVREfree area calc.COATING7-tank + powderPROCESS ROUTECUTFORMWELDPRETREATCOATPART / PROCESSGENSET CANOPY ENCLOSURESMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Genset and canopies

Genset acoustic enclosure manufacturing: cut, weld, coat

How a DG set acoustic enclosure is cut, formed, welded and lined, with the panel mass, lining and leakage numbers that decide whether it meets 75 dB(A) at 1 m.

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12 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-RAI-411COACH INTERIOR PANEL · RDSOFIXING CENTRES FROM VEHICLE DATUMPANEL SECTIONPANEL SECTION · FINISHMILL CERT · BATCH TRACEPANEL LENGTHHEIGHTWINDOW CUTFIXINGFILM BUILDEVIDENCEmill certsINSPECTIONin-processFINISHpowder / brushPROCESS ROUTECUTFORMWELDFINISHTRACEPART / PROCESSRAILWAY FURNITURE INFRASTRUCTUREMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Railway and infrastructure

Electrical cabinet manufacturing: stamping, welding, coating

Electrical cabinet manufacturing for rail and infrastructure: frame welding, door flatness, gasket compression, IP testing and the powder coat that survives a trackside.

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9 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-BEN-418FLAT PATTERN · BA COMPENSATEDR = 2t90°BEND SECTIONNEUTRAL AXIS · K-FACTORK = 0.3–0.5 BY R/tFLAT LENGTHFLANGEBEND LINEK-FACTORSPRINGBACKBRAKE200 T / 4,450 mm5-AXISDelem controlTHICKNESSto 10 mmPROCESS ROUTECUTDEBURRBENDCHECKCOATPART / PROCESSBENDING WELDING ASSEMBLIESMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Bending and welding

Build-to-print sheet metal: drawing to dispatch

Build-to-print sheet metal manufacturing from drawing to dispatch: the nine gates, the evidence at each one, and the numbers that keep a repeat order identical.

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10 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-BEN-857FLAT PATTERN · BA COMPENSATEDR = 3t75°BEND SECTIONNEUTRAL AXIS · K-FACTORK = 0.3–0.5 BY R/tFLAT LENGTHFLANGEBEND LINEK-FACTORSPRINGBACKBRAKE200 T / 4,450 mm5-AXISDelem controlTHICKNESSto 10 mmPROCESS ROUTECUTDEBURRBENDCHECKCOATPART / PROCESSBENDING WELDING ASSEMBLIESMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Bending and welding

MIG versus robotic MIG welding for OEM parts

MIG versus robotic MIG welding for OEM parts: the fit-up, access and quantity numbers that decide the route, and where a manual bench still wins.

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10 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-STA-312RFQ PACKCONTAINER · FOB → DAPINSPECTIONLANDED COSTFOBgoods at portCIF+ freight + insuranceDUTYon CIF valueDAPlanded at siteLANDED COSTSUPPLY CHAINLEAD TIMEDRAWING PACKSHIPMENTDUTY ON CIFRFQ FIELDS10DOCSmill cert + CoCTERMSIncoterms 2020PROCESS ROUTERFQDFMQUOTETRANSFERSHIPPART / PROCESSSTANDARDS AND COMPLIANCEMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Standards

ISO 5817 weld quality levels: scope, limits and what to ask for

ISO 5817 quality levels B, C and D explained: undercut, porosity and excess weld metal limits, the level to put on a drawing, and where the standard stops.

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10 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-SUR-391SUBSTRATE · CRCA / STEELCONVERSION COATINGPOWDER FILM · 40–60 µm1234567SEVEN-TANK PRETREATMENTFILM BUILDFILM BUILDDFT GAUGE · ISO 2409 ADHESIONPART WIDTHDFTPowder filmConversion layer7 TANKSPRETREATMENT7 tankBLAST CHAMBER16 × 16 ftPOWDER BOOTH18 × 14 ftPROCESS ROUTEBLASTDEGREASEPHOSPHATEPOWDERCUREPART / PROCESSSURFACE TREATMENT COATINGMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Coating

Degreasing brass parts before coating

Brass holds 0.5–2 g/m² of drawing oil and forms no phosphate, so degreasing brass parts decides whether the powder stays on. Baths, rinse limits and DFT.

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