Precision CNC Machining Guide for Electrical Copper and Brass Parts: Tolerances and Surface Plating

Oct 05, 2026 Tso lus

Rau hluav taws xob switchgear, faib units, busbar sib dhos, relay Cheebtsam, thiab davhlau ya nyob twg systems, CNC machining ntawm tooj liab thiab tooj dag tsis tau tswj nrog ib tug universal txiav zoo. Copper muab cov hluav taws xob ua hluav taws xob siab tab sis nyiam tsim cov ntug tsim thiab cov cuab yeej adhesion, thaum dawb-machining tooj dag feem ntau tso cai rau kev txiav nrawm dua thiab ruaj khov dua nti khiav tawm.

 

Rau precision hluav taws xob CNC qhov chaw, lub hom phiaj qhov ntev tuaj yeem ncav cuag ± 0.005 hli ntawm cov yam ntxwv xaiv thaum lub tshuab thermal drift, cov cuab yeej hnav, kev ua haujlwm deformation, coolant mob, thiab tshuaj xyuas qhov kub thiab txias yog ib feem ntawm cov txheej txheem.

 

Cov khoom siv yog li ntawd cuam tshuam tsis tsuas yog conductivity, tab sis kuj txiav quab yuam, burr tsim, nto roughness, seem stability, plating cwj pwm, thiab zaum kawg kev tiv thaiv.

Brass Multi Axis Machined Components

 

Machining Metallurgy: Ntshiab Copper vs. Dawb-Machining Brass

C1100 Copper Conductivity thiab Machining Cwj Pwm

C1100 tooj liab yog dav xaiv qhov twg hluav taws xob conductivity yog tus qauv tsim qauv. Nws cov ntsiab lus tooj liab siab ua rau cov hluav taws xob tsis zoo, tab sis nws cov ductility tuaj yeem tsim cov chips txuas ntxiv thiab cov khoom adhesion ntawm qhov txiav.

 

Tej yam machining tswj muaj xws li:

  • C1100 tooj liab: hluav taws xob conductivity feem ntau tshaj 100% IACS nyob ntawm cov khoom siv
  • Sharp carbide txiav ntug nrog optimized rake geometry
  • Siab -siab coolant los yog qhia kom txias ntws rau nti tshem tawm
  • Tswj kev txiav ceev thiab pub tus nqi kom txwv cov ntug tsim
  • Cov cuab yeej siv saib xyuas ua ntej qhov dav dav mus txog ± 0.005 hli tswj kev txwv

 

Rau switchgear terminals thiab tam sim no nqa CNC Cheebtsam, machined nto yuav tsum tau soj ntsuam rau burrs vim residual burrs tuaj yeem cuam tshuam nrog kev sib dhos clearance, plating thickness, los yog hluav taws xob tiv tauj geometry.

 

H62 / H65 tooj dag txiav ruaj khov thiab nti tswj

Brass xws li H62 thiab H65 feem ntau muab cov nti tawg yooj yim dua thiab qis txiav ua haujlwm dua li kev lag luam ntshiab tooj liab. Qhov no ua rau tooj dag haum rau precision threaded Cheebtsam, davhlau ya nyob twg lub cev, conductive spacers, connector Cheebtsam, thiab machined hluav taws xob kho vajtse.

Parameter C1100 tooj liab H62 tooj Engineering Effect
Lub ntsiab yam ntxwv High conductivity Zoo dua machinability Txiav txim siab txiav cov tswv yim
Hom conductivity >100% IACS ua tau qis dua cov tooj liab ntshiab Xaiv raws li txoj kev tam sim no
Chip cwj pwm Ntev / du Feem ntau yooj yim-rau-tawg Kev cuam tshuam cov txheej txheem stability
Tool sticking txaus ntshai Siab dua qis Yuav tsum tau cov cuab yeej geometry kom raug
Burr nyiam Nruab nrab mus rau siab Nruab nrab Xav tau kev tswj xyuas deburring
Tej daim ntawv thov Cov khoom siv tam sim no Terminals, fittings, vaj tse Nyob ntawm cov khoom siv hluav taws xob

Rau cov khoom siv tooj liab CNC machining, cov ntaub ntawv pov thawj yuav tsum tau txuas nrog ntau cov khoom kom pab pawg neeg tsim khoom tuaj yeem paub qhov txawv ntawm qhov sib txawv ntawm cov khoom sib txawv.

Brass Sheets and Bars for Brass Multi Axis Machined Components

 

 

Yuav ua li cas ± 0.005 mm CNC Tolerance yog tswj thaum lub sij hawm hluav taws xob feem ntau lawm

Kev kos duab ntev ntawm ± 0.005 hli yuav tsum tsis txhob raug kho raws li lub tshuab specification ib leeg. Nws yog qhov yuav tsum tau tswj cov txheej txheem nrog lub tshuab thermal stability, fixture repeatability, tej cuab yeej tej yam kev mob, cov khoom batch sib xws, ntsuas tsis meej, thiab soj ntsuam kub.

 

Rau cov khoom siv hluav taws xob tau nruab rau hauv cov khoom siv hluav taws xob los yog cov khoom xa tawm, qhov loj me feem ntau suav nrog lub davhlau ya nyob twg-qhov taub, qhov sib cuag lub rooj zaum txoj kab uas hla, qhov chaw mounting, qhov dav, thickness, thiab mating geometry.

 

± 0.005 mm Dimensional Control Yuav tsum tau saib xyuas cov txheej txheem

Cov txheej txheem CNC ruaj khov yuav tsum tsim kom muaj qhov loj me, qhov siab thiab qis qis, cov cuab yeej them nqi, thiab kev tshuaj xyuas zaus ua ntej ntim ntau lawm.

 

Ib qho kev tswj hwm ib txwm muaj xws li: Kev txheeb xyuas cov khoom siv thiab kev txheeb xyuas qhov loj tuaj. Thawj-thooj CNC tshuaj xyuas. Tool offset paub meej. In-process dimensional ntsuas. Kev txheeb xyuas qhov tseem ceeb ntawm qhov ntev. Qhov kawg CMM lossis ntsuas ntsuas ntsuas ntsuas. Batch traceability thiab tshuaj xyuas cov ntaub ntawv khaws cia.

 

Rau cov yam ntxwv tshwj xeeb nruj, qhov chaw tsim khoom yuav tsum tswj qhov kub thiab txias vim tias thermal expansion tuaj yeem ua piv rau qhov tso cai qhov ntev ntev.

 

Ra 0.8–1.6 μm Nto Finish Txhawb Plating thiab hluav taws xob tiv tauj

Nto roughness tsis yog ib qho kev ntsuas kom zoo nkauj. Nws cuam tshuam rau plating kev pab them nqi, qhov chaw sib cuag, burr tuav, tu cov hauj lwm zoo, thiab tom qab hluav taws xob tiv thaiv.

Machining Requirement Hom Engineering Lub Hom Phiaj Txoj kev tshuaj xyuas
Dimensional kam rau ua ± 0.005 hli CMM / calibrated gauge
General precision kam rau ua ± 0.01 hli CMM / micrometer
Nto roughness 0.8-1.6 hli Nto roughness tester
Ntug burr Tswj / tshem tawm Visual + tactile soj ntsuam
Qhov taub Kev kos duab tshwj xeeb Pin gauge / CMM
Flatness Kev kos duab tshwj xeeb CMM / qhov siab

Qhov kawg specification yuav tsum nco ntsoov ua raws li cov khoom siv kos duab es tsis yog siv lub siab ntev rau txhua qhov tshwj xeeb.

Download Contact Material Spec Sheet

 

Precision CNC Milling/Machining for Brass Multi Axis Machined Components

 

CNC Machining Versus Lwm Cov Hlau-Forming Txheej Txheem rau tooj liab thiab tooj dag

CNC machining feem ntau xaiv thaum cov khoom siv hluav taws xob muaj cov txheej txheem nyuaj, tswj qhov, cov xov sab hauv, cov kab uas hla, cov qhov, lossis peb-dimensional geometries uas tsis tuaj yeem ua tau zoo los ntawm kev stamping yooj yim.

 

Txawm li cas los xij, CNC machining tshem tawm cov khoom es tsis tsim nws. Rau cov khoom siv hluav taws xob ntau nrog cov duab geometry rov ua dua, stamping, txias taub hau, lossis kev tuag ua tiav tuaj yeem muab cov khoom siv sib txawv.

 

CNC Machining thiab Progressive Stamping ntawm ± 0.005 hli Feature Control

Qhov xwm txheej CNC Machining Progressive Tuag Stamping
Cov khoom tshem tawm Kev rho tawm Txoj kev / shearing
Complex 3D geometry Muaj peev xwm muaj zog txwv
Kev ntim ntau lawm Tsim nyog Tsim nyog heev
Tooling peev Tsawg pib qhov cuab yeej Kev nqis peev ntau dua
Kev siv cov khoom siv Nyob ntawm geometry Feem ntau siab dua
Tight hauv zos nta ± 0.005 hli tuaj yeem ua tiav ntawm cov yam ntxwv xaiv Nyob ntawm tuag tsim
Tsim kev hloov pauv Hloov tau yooj yim Tuag hloov yuav tsum tau
Yam khoom siv Tooj, tooj dag, aluminium, hlau Copper alloys, tooj dag, hlau

Rau cov ntim qis-rau-nruab nrab, cov qauv qauv, cov khoom hloov pauv, thiab cov khoom siv hluav taws xob geometrically complex, CNC machining tuaj yeem txo cov cuab yeej siv tau. Rau qhov loj-ntim tiaj tus terminals los yog stamped conductive Cheebtsam, kev vam meej stamping yuav ua tau zoo dua.

Txheej txheem Dimensional Flexibility Kev siv cov khoom siv Tus nqi ntau lawm Kev Siv Hluav Taws Xob
CNC tig Siab Nruab nrab Nruab nrab Kev cai terminals
Txias taub hau Nruab nrab Siab Siab Rivets, pins, conductive fasteners
Stamping Nruab nrab Siab Siab heev Terminals, brackets
Milling Siab qis Nruab nrab Complex tooj liab blocks

Cov txheej txheem xaiv yuav tsum yog nyob ntawm qhov ntim txhua xyoo, geometry, kam rau ua, cov nqi khoom siv, cov cuab yeej siv nyiaj, thiab cov kev xav tau ntawm cov khoom siv qis qis dua li kev ua haujlwm ceev ib leeg.

Nyiaj, Tin, thiab Nickel Plating xaiv rau tooj liab thiab tooj dag CNC qhov chaw

Cov tooj liab thiab tooj dag tuaj yeem oxidize thiab tsim cov yeeb yaj kiab saum npoo uas cuam tshuam rau solderability, tiv thaiv kev tiv thaiv, kev coj tus cwj pwm corrosion, thiab kev ruaj ntseg interface. Plating yog li ntawd xaiv raws li qhov hluav taws xob interface, mechanical contact condition, environmental exposure, thiab los ua ke txheej txheem.

 

Peb lub tshuab feem ntau tau teev tseg -silver, tin, thiab npib tsib xee- ua haujlwm rau ntau hom engineering.

 

Silver Plating rau kev tiv thaiv qis thiab kev ua haujlwm siab

Silver muaj hluav taws xob conductivity siab heev thiab nquag teev rau mating hluav taws xob interfaces qhov twg tsis tshua muaj kev tiv thaiv yog qhov tseem ceeb.

 

Cov kev xav txog kev tsim qauv muaj xws li:

  • Silver thickness teev nyob rau hauv μm
  • Base-material nto npaj ua ntej plating
  • Adhesion ntawm plating txheej thiab tooj liab los yog tooj dag substrate
  • Nto huv huv thiab tswj kev sib kis
  • Tiv tauj tiv thaiv tom qab kev sim ib puag ncig
  • Hnav kev ua tau zoo nyob rau hauv rov mating cycles

 

Rau kev sib cuag hluav taws xob, nyiaj plating yuav tsum tsis txhob teev tsuas yog los ntawm nominal thickness. Cov txheej txheem engineering yuav tsum txhais qhov tsawg kawg nkaus hauv zos thickness, ntsuas txoj kev, substrate condition, thiab kev lees txais.

 

Tin Plating rau tooj liab hluav taws xob Terminals thiab Solderable Interfaces

Tin feem ntau xaiv rau tooj liab thiab tooj dag terminals qhov twg solderability, hluav taws xob conductivity, thiab tus nqi tswj yuav tsum tau sib npaug.

 

Tin-plated CNC qhov chaw yuav siv tau rau hauv:

  • Switchgear terminal assemblies
  • Cov khoom siv hlau txuas
  • Busbar interfaces
  • Cov khoom sib txuas
  • Cov khoom siv hluav taws xob tsawg tsawg

 

Cov txheej txheem plating yuav tsum txhais cov thickness, deg mob, kev npaj substrate, thiab siv tau los yog kev kuaj corrosion.

 

Nickel Plating rau Deg Hardness thiab Environmental Protection

Nickel muab lub ntsej muag nyuaj dua li ntau cov txheej txheem mos thiab tuaj yeem ua haujlwm raws li txheej txheej txheej ntawm substrate thiab txheej txheej sab nraud.

 

Rau precision hluav taws xob CNC qhov chaw, nickel plating yuav raug txiav txim siab qhov twg cov khoom yuav tsum tau:

  • Siab dua saum npoo hardness
  • Hnav tsis kam
  • Barrier-layer kev ua tau zoo
  • Txhim kho corrosion kuj
  • Tswj cov tsos thiab qhov loj me tsim-up

 

Plating thickness yuav tsum muaj nyob rau hauv qhov seem-up vim hais tias ib tug txheej ntawm ob sab ntawm ib tug feature tuaj yeem txo qhov txoj kab uas hla los yog nce sab nraud.

Nrog rau peb cov engineers hluav taws xob niaj hnub no

 

Yuav ua li cas Plating Thickness hloov qhov kawg CNC Dimensions thiab tiv tauj Resistance

Ib txheej plating yog ib feem ntawm lub cev ntawm cov khoom tiav, yog li nws cov thickness yuav tsum tau muab tso rau hauv cov nyiaj siv ua haujlwm thiab cov saw hlau ntev.

 

Piv txwv li, yog tias lub qhov cylindrical tau txais cov txheej txheem sab hauv, qhov kawg siv tau txoj kab uas hla yuav txo qis raws li txheej txheej ntawm ob qho tib si tawm tsam.

 

Rau ib qho yooj yim los ntawm-qhov xam:

Qhov kawg Txoj kab uas hla ≈ Machined Hole Diameter − 2 × Txheej Thickness

 

Qhov tshwm sim tiag tiag kuj yog nyob ntawm txheej txheej, geometry, daim npog qhov ncauj, qhov ceev tam sim no, thiab cov txheej txheem plating muaj peev xwm.

 

5-20 μm Plating Thickness Yuav Tsum Tau Txais Qhov Loj

Txheej Piv txwv Thickness Range Primary Engineering Consideration
Nyiaj 5–20 μm Conductivity / kev sib cuag interface
Tin 3–15 μm Solderability / davhlau ya nyob twg txuas
Nickel 5–25 μm Hardness/barrier tiv thaiv

Cov txiaj ntsig no yog cov piv txwv engineering es tsis yog universal specifications. Qhov kawg thickness yuav tsum tau tsim los ntawm hluav taws xob, mechanical, ib puag ncig, thiab qhov ntev ntawm cov khoom siv.

 

Kev tiv thaiv kev tiv thaiv yuav tsum tau ntau tshaj Plating Thickness

Kev tiv thaiv qis yog nyob ntawm ntau qhov sib txawv: tiv thaiv kev tiv thaiv=f (khoom siv, qhov chaw saum npoo, tiv tauj quab yuam, geometry, oxide / zaj duab xis mob, plating, kub)

 

Ib txheej txheej tuab tsis tuaj yeem ua kom qis dua. Kev huv ntawm qhov chaw, kev sib cuag siab, qhov sib txuas geometry, txheej txheej, thiab cov txheej txheem substrate kuj cuam tshuam rau qhov ntsuas tus nqi.

 

Rau cov khoom siv hauv cov tshuab hluav taws xob tsis tshua muaj hluav taws xob, cov qauv ntsuas thiab ntsuas tam sim no yuav tsum tau teev tseg nrog rau qhov kev lees paub.

 

FAQ: Precision CNC tooj liab thiab tooj dag rau kev siv hluav taws xob

Yuav ua li cas nyiaj plating thickness ntsuas ntawm CNC tooj liab hluav taws xob qhov chaw?

Silver plating thickness tuaj yeem ntsuas tau siv X-ray fluorescence (XRF), metallographic cross-section tsom xam, lossis lwm txoj kev siv tau. Kev yuav khoom tshwj xeeb yuav tsum txhais qhov tsawg kawg nkaus thickness, ntsuas qhov chaw, substrate, thiab kev lees paub hauv μm.

 

Dab tsi kam rau ua ib tus neeg muag khoom CNC tswj tau qhov tseeb hluav taws xob tooj liab qhov chaw?

Cov yam ntxwv CNC xaiv tuaj yeem tswj tau mus rau ± 0.005 hli thaum lub tshuab ruaj khov, kev siv cuab yeej, kev kho, thermal tej yam kev mob, thiab kev tshuaj xyuas muaj peev xwm tswj tau zoo. Qhov kev ua tau zoo nyob ntawm qhov geometry, cov khoom siv, qhov loj me, thiab ntim ntau lawm.

 

Cov khoom siv tooj dag CNC puas tuaj yeem muab nrog RoHS thiab REACH cov ntaub ntawv?

Yog lawm. Cov ntaub ntawv pov thawj, RoHS cov lus tshaj tawm, REACH cov ntaub ntawv, cov ntaub ntawv soj ntsuam qhov ntev, thiab cov ntaub ntawv plating tuaj yeem muab tau thaum teev tseg hauv kev yuav khoom. Cov ntaub ntawv muaj peev xwm yuav tsum tau lees paub ua ntej ntau lawm.

Good Quality of Brass Multi Axis Machined Components Depends on Advanced Testing Equipments

 

tiv tauj peb

Rau drawings xav tauBrass Multi Axis Machined Cheebtsamnrog C1100 tooj liab, H62 / H65 tooj dag, ± 0.005 hli qhov loj me, tswj Ra nto tiav, nyiaj / tin / npib tsib xee plating, CMM tshuaj xyuas, RoHS / REACH cov ntaub ntawv, los yog IATF 16949 cov txheej txheem tswj, xa 2D daim duab, 3D qauv, cov khoom siv plating, kev tshuaj xyuas txhua xyoo, cov lus qhia txog kev lag luam thiab cov khoom lag luam.

Mr. Terry from Xiamen Apollo