Sheet vs CNC. Hollow vs solid. Fab choice.
Sheet metal vs CNC machining decision. Sheet metal for hollow enclosures, brackets, structures. CNC for precision, complex 3D geometry.
Sheet metal vs machining guide
Below 50 pieces: CNC competitive. Above: sheet metal usually cheaper for similar geometry.
Key principles.
Light, cheap
Hollow envelope. Cost-effective at volume. Less material waste.
Precision, complex
Tight tolerance, complex 3D geometry, internal features.
Sheet cheaper at scale
Sheet metal cheaper for similar geometry at production volumes.
Hollow vs solid
Sheet: hollow boxes, panels. CNC: solid blocks, complex 3D.
CNC tighter
CNC ±0.025 mm. Sheet ±0.5 mm typical.
Sheet less
Sheet metal yields 80-90%. CNC 30-50%.
FAQ
Below 50 pieces: CNC competitive. Above: sheet metal usually cheaper for similar geometry.
Sheet metal enclosure + CNC mounting brackets. Common pattern.
Tight tolerance to CNC features, looser to sheet metal positions. Combined achievable.
Yes — TIG for precision. Plan precise CNC features 5-10 mm from welds (HAZ).
Maximize sheet metal envelope. Use CNC inserts for precision features. Minimize CNC material.
Sheet metal 100-10K typical. CNC 1-1000 typical. Each per economic optimum.
Get an instant quote
Send your CAD — we reply with detailed pricing, lead time, and DFM feedback within 4 working hours.
Talk to an engineer
WhatsApp our team directly. Most messages answered within 12 minutes during work hours.
Explore all services
CNC, 3D printing, injection molding, sheet metal, casting, finishing — one quality system, one partner.
Keep reading
Quote
Get a free CNC machining, 3D printing, injection molding quote from PifyC. Send CAD via WhatsApp or email — q…
Read more →MachiningCNC machine
ISO 9001 certified CNC machining in Wuxi, China. 3, 4 and 5-axis milling, Swiss turning, 40+ materials, ±0.01 mm…
Read more →Additive manufacturing3D printing service
Industrial-grade 3D printing from Wuxi, Jiangsu, China: SLA, SLS, MJF and DMLS metal. Functional prototypes and …
Read more →Moulding & castingInjection molding
Plastic injection molding from China: rapid aluminum tooling in 14 days for 500–10,000 parts, production P20/H13…
Read more →Sheet metal & fabricationSheet metal
Precision sheet metal fabrication from Wuxi: 4 kW fiber laser cutting, Amada press brake bending (±0.1 mm), TIG/…
Read more →Finishing & treatmentFinishing services
Complete in-house surface finishing: Type II/III anodize, powder coating, electroplating, passivation, bead blas…
Read more →PifyCMaterials
PifyC's 50+ production-grade materials: aluminum, stainless steel, titanium, brass, copper, and engineering p…
Read more →Material-specific partsCustom copper parts
Custom copper parts: OFE copper C101 for electrical conductivity, C110 for general copper, C17200 BeCu for sprin…
Read more →
Send a CAD file. Get an engineering-reviewed quote.
No minimum quantity, free DFM feedback from a senior manufacturing engineer, and an NDA signed before file review on request.