Plastični deli, ki jih obdelujemo, zajemajo prototipe, izolatorje, zobnike, puše, obrabne komponente, medicinsko usposobljene PEEK dele in optične akrilne leče: ABS in POM (Delrin) za splošna dela, najlon 6/6 za obrabo, PEEK za temperaturo in sterilizacijo, PTFE za kemično in malotrenjsko uporabo.
Plastike se obdelujejo drugače kot kovine — toplotna raztegljivost je približno desetkrat višja in toplota se kopiči hitro, zato poganjamo ostro polirano orodje, konzervativne hitrosti in klimatsko rezkanje, da se robovi ne stopijo ali odlomijo. Tolerance odražajo material, ne želja.
Material Grades & Properties
Engineering Plastics Grades We Machine
| Grade | Standard | Characteristics |
|---|---|---|
| POM (Delrin/Acetal) | — | Low friction, high stiffness, dimensional stability; gears, bushings, precision parts. |
| Nylon (PA6/PA66) | — | Tough and wear-resistant; absorbs moisture (dimension planning needed). |
| PEEK | — | High-performance: chemical/heat resistance; medical implants, aerospace; expensive. |
| ABS | — | Impact resistant, low cost; prototyping and housings. |
| PTFE (Teflon) | — | Near-zero friction, chemical inertness; seals and insulators; hard to hold tolerance. |
Key Properties of Machined Engineering Plastics
- ✓Light weight
- ✓Corrosion-free
- ✓Low friction options
- ✓Electrical insulation
Typical tolerances:±0.1 mm typical; thermal expansion and moisture limit precision
Applications for Engineering Plastics Parts
- Gears and bushings
- Insulators
- Seals and wear strips
- Medical device components (PEEK)
- Enclosures and jigs
Machining Notes for Engineering Plastics
Sharp positive-rake tools, moderate speeds, air blast or coolant; watch heat buildup (melting) and clamping pressure (deformation).
Finishes for Engineering Plastics Parts
- As-machined (typical)
- Vapor polishing (select plastics)
- Dyeing
Zmogljivosti
- Obdelava ABS/POM/najlon/PEEK/PTFE po risbi
- Strategije ostrega orodja proti taljenju in odlopkanju
- Poliranje akrila z ognjem in z obračanjem
- Usklajevanje žarjenja za razteg napetosti
Tipični materiali
ABS, POM-C (Delrin), najlon 6/6, PEEK, PTFE, HDPE/UHMW, polikarbonat, akril (PMMA).
| Material / kakovost | Tipično stanje | Obdelovalnost | Kje se uporablja |
|---|---|---|---|
| Aluminij 6061 | T6 (raztopinsko žarjen in staran) | Enostavno: dobro rezljiv, dobra kontrola odrezkov | Nosilci, ohišja, priprave, prototipi do serijske proizvodnje |
| Aluminij 7075 | T6 / T651 | Težje: večja obraba orodja, potrebna toga vpenjanja | Visokotrdnostni deli, občutljivi na težo; ni primeren za varjenje |
| Nerjaveče jeklo 304 / 304L | Žarjeno mehko | Utrdi se z obdelavo: nižje rezne hitrosti, pozitivni pomiki | Splošna odpornost proti koroziji, živilska in procesna oprema |
| Nerjaveče jeklo 316 / 316L | Žarjeno mehko | Žilavejši od 304: večja obraba orodja | Izpostavljenost kloridom, morski vodi, medicini in farmaciji |
| Ogljično jeklo 1018 / 1045 | Valjano / normalizirano | Enostavno do srednje; potrebuje zaščito pred rjo | Gredi, plošče, varjene konstrukcije, telesa orodij |
| Medenina C360 | H02 poltrda | Odlično: visoke hitrosti, čiste površine | Fitingi, puše, konektorji, dekorativni deli |
| Baker C110 | Žarjen mehko / H02 | Lepljiv: ostro orodje in veliki naklonski koti | Prevodnost, zbiralki, toplotno upravljanje |
| Titan Grade 5 (Ti-6Al-4V) | Žarjen po valjanju | Zahtevno: nizke hitrosti, kontrola toplote, obraba orodja | Vesoljska, medicinska in lahka visokotrdnostna dela |
| Tehnične plastike (POM, PEEK, PA) | Ekstrudirano / žarjeno | Enostavno do lepljivo: mehke čeljusti, ostro orodje | Izolacija, manjše trenje, kemijski in obrabni deli |
Zaključki
Obdelano (surovo), brez naplavin, akril poliran z ognjem/obračanjem, žarjeno na zahtevo.
| Zaključek | Kaj naredi | Določite, kadar |
|---|---|---|
| Obdelano (surovo) | Vidni sledovi orodja; Ra tipično 1.6–3.2 µm | Del mora samo opravljati funkcijo |
| Peskanje s steklenimi kroglicami | Enotna mat površina, skrije sledove orodja | Vidni deli pred eloksiranjem |
| Eloksiranje tip II | Zgradi oksidno plast; barvne možnosti | Aluminijev videz plus zmerna odpornost proti koroziji in obrabi |
| Trdo eloksiranje tip III | Debelejša, trša oksidna plast | Drsne ali obrabne aluminijaste površine |
| Kromatiranje | Tanek zaščitni film, ki ostane prevoden | Električno vezavo ali uzemljenje na aluminiju |
| Kemični nikelj | Enotna, trda, odporna proti koroziji plast | Obraba plus korozija, tudi znotraj izvrtin |
| Cinkovo pokalivanje | Ekonomična žrtvovana zaščita proti koroziji | Jekleni deli v notranjosti ali zaščiteni zunanji vgradnji |
| Prašno lakiranje | Debel, vzdržen, dekorativen premaz | Kadar je zahteva videz |
| Pasivacija | Odstrani prosto železo in obnovi oksidno plast | Nerjaveči deli po obdelavi |
| Razteg napetosti / toplotna obdelava | Razpusti notranje napetosti pred ali po rezanju | Tanke stene in ozke tolerance, ki morajo preživeti obdelavo |
Tolerance
Splošno ISO 2768-m; tipično ±0.05 mm, ±0.02 mm na kritičnih potezah.
| Zapis na risbi | Kaj potrebuje | Vpliv na strošek in dobavni rok |
|---|---|---|
| Splošno: ±0.25 mm / ±0.010 in | Standardno orodje, dimenzijska kontrola | Izhodišče: brez prištevka |
| Standardno: ±0.13 mm / ±0.005 in | Stroj v dobrem stanju, kontrola prvega kosa | Majhen prištevek; običajna privzetost pri ponudbah |
| Ozko: ±0.025 mm / ±0.001 in | Brušeno ali diamantno orodje, kontrola temperature, CMM | Skokovita sprememba: počasnejši rezi in polna kontrola |
| Precizno: ±0.013 mm / ±0.0005 in | Končni prehodi, merilne šablone, kontrolirano okolje | Obdelava določa ceno; pogosto ločen postopek |
| Položaj / kotnost (GD&T) | Kontrola izhodišč, eno vpenjanje za povezane poteze | Odvisno, koliko vpenjanj zajema izhodišče |
| Površina Ra 0.8 µm ali boljša | Finjši prehodi, poliranje ali končni prehod | Doda procesni korak, ne le rezalni čas |
Related Processes
5-axis CNC machining
used for
CNC Milling
used for
Recycling
used for
Common Applications
- Turning
- cost-sensitive prototypes
- consumer goods
Možnosti obdelave
- CNC machining is a subtractive manufacturing process.
- Finishing Options: Black Oxide, Electropolishing, ENP, Media Blasting, Nickel Plating, Passivation, Powder Coating, Tumble Polishing, Zinc Plating, Vibratory Tumbling
- EPX 82 is processed using Carbon DLS
- MUD is a type of mold that uses a standard injection molding frame.
- Different taper turning methods suit different jobs. Compound slides often handle short tapers, while CNC interpolation and taper attachments improve repeatability on longer parts
- G92 is used by programming one or more G92's right after the G76 threading cycle
- Estimates are provided through an auto-quoted method.
- EDM relies on a voltage and a thin wire
- Advanced machining processes like micro-machining and EDM are used to create small, precise mold cavities and cores
Surface Finish Reference
- The finish of MoldTech MT11010 is a fine matte texture.
- The finish of MoldTech MT11020 is a medium matte texture.
- The finish of MoldTech MT11030 is a coarse matte texture.
- SPI A-1 has a surface roughness of 0.012–0.025 µm.
- SPI B-2 has a finish of Medium semi-gloss.
- SPI B-2 has a surface roughness of 0.10–0.15 µm.
- SPI C-3 has a surface roughness of 0.63–0.70 µm.
- Super high gloss, polished with a Grade #3 (6000-grit) diamond buff to Ra 0.012–0.025 µm.
- Medium semi-gloss, finished with 400-grit paper to Ra 0.10–0.15 µm.
- Normal matte, polished with 320-grit stone to Ra 0.63–0.70 µm.
Tolerance Reference
- The tolerance with drawing for CNC Milling is as low as +/- 0.005 mm.
- FDM 3D printing offers a low-cost component with average accuracy and uses thermoplastics for 3D printing.
- Wire Cut EDM is highly accurate.
- The U6 H.E.A.T machine achieves tight tolerances.
- Die sinker EDM is capable of maintaining tight tolerances
- The shop needs to have CNC machines that can achieve a specific tolerance.
Industries We Serve
- antennas
- automotive
- CNC machined parts
- custom parts
- electronics
- medical diagnostic
- optical displays
- optical_systems
Material Reference
- ABS
- Austenitic Stainless Steel
- Carbon steel
- ceramic
- composites
- Copper - T2
- copper or graphite
- Hardened Materials
- High Impact Polystyrene
- Low-density polyethylene
- MDF
- metal
- Polybutylene Terephthalate
- SUS304
- thermoplastics
- thick metal sheets
- tungsten carbide
Pogosto zastavljena vprašanja
PEEK ali Delrin za mojo aplikacijo?
Delrin (POM-C) ustreza preciznim mehanskim delom po zmerni ceni; PEEK ustreza visokim temperaturam, sterilizaciji in kemični izpostavljenosti po višji ceni. Priporočimo na podlagi delovnega okolja.
Zakaj so tolerance plastike širše kot pri kovinah?
Plastike se raztegujejo in sprostijo s temperaturo in napetostjo približno desetkrat bolj kot kovine. ±0.05 mm je tipično; ±0.02 mm držimo na kritičnih potezah s stabilnim materialom in kontroliranim procesom.
Ali lahko obdelujete prosojne akrilne dele?
Da. Akril obdelujemo z ostrim orodjem in poliramo do prosojnosti, kjer to geometrija dopušča — pošljite risbo in označite, katere površine morajo ostati optično čiste.
What is the minimum order quantity (MOQ)?
Prototypes from 1 pc. Low-volume production typical 50-500 pcs. No forced MOQ on custom parts; unit price drops with volume.
What is the typical lead time?
Industry benchmark: instant-quote platforms deliver prototypes in 1-3 business days. Our own production: prototypes 5-10 working days, including in-house QC and shipping. Production: 2-4 weeks depending on quantity/finishing. Express options exist; finishing adds days.
How do I get a quote and what information do you need?
3D files (STEP/IGS) + 2D drawing with tolerances. Material, quantity, finish, destination country. Quote turnaround: 24-48h typical.
How is quality controlled?
First-article inspection in our own shop before the first production order. In-process checks. Final inspection report (dimensions) with shipment. Material certs (mill test reports) on request.
Is my design protected?
NDA before file exchange. Files used only for your production. No resale of custom designs.
Which material should I choose?
Function first: strength, weight, corrosion, cost. Common pairings: 6061 general, 304/316 corrosive env., PEEK medical. See materials guide pages.
Which surface finish do I need?
Anodizing for aluminum corrosion/wear/color. Passivation for stainless. Plating for conductivity/steel protection. Cosmetic vs functional distinction.
How do you ship and what terms?
DHL/FedEx/UPS express for samples and small batches. Air/sea freight for production volumes. Incoterms: EXW/FOB/DAP/DDP options.
Sources · 4
- hubs.comIndustry peer technical page
- xometry.comIndustry peer technical page
- uneedpm.comUnclassified source
- us.arrk.comUnclassified source
Technical references cited for verifiability — not supplier recommendations. Browse the research library.
Capability commitments on this page are owner-confirmed (2026-09-21).