GH4169 (Inconel 718) Weldability thiab Machining Guidelines
GH4169 (Inconel 718) Weldability thiab Machining Guidelines
GH4169 (Inconel 718) yog npib tsib xee -raws li superalloy paub txog nws lub zog siab ntawm 650-700 degree, zoo heev creep resistance, thiab siab oxidation thiab corrosion kuj. Txawm hais tias nws yog suav tias yog ib qho ntawm cov superalloys nrog zoo weldability, nws cov kev ua haujlwm siab hardening tus nqi thiab thermal conductivity tsawg ua rau nws nyuaj rau txheej txheem.
Dab tsi yog qhov kev ntsuas kev ua tau zoo ntawm Inconel 718?
Txawm li cas los xij, qhov kev ua tau zoo tshaj no tseem ua rau cov nqi tsim khoom siab: Inconel 718 tsuas yog 12% hauv AISI kev ua tau zoo, ua rau nws yog ib qho nyuaj tshaj plaws rau cov txheej txheem kev ntseeg siab.
1. GH4169 Alloy Chemical Composition (Wt%)
| Element | Cov ntsiab lus (%) | Txuj Kev Cai | Muaj nuj nqi |
|---|---|---|---|
| Nickel (Ni) | 50.0 – 55.0 | 50.0 – 55.0 | Matrix ntsiab; muab siab -kub stability thiab corrosion kuj |
| Chromium (Cr) | 17.0 – 21.0 | 17.0 – 21.0 | Oxidation thiab corrosion kuj |
| Hlau (Fe) | Sib npaug (~18-20) | Tshuav | Fe-Ni-Cr puag alloy |
| Niobium (Nb) | 4.75 – 5.50 | 4.75 – 5.50 | Core strengthening keeb- forms ″ theem (Ni₃Nb) |
| Molybdenum (hli) | 2.80 – 3.30 | 2.80 – 3.30 | Khoom- daws teeb meem; txhim khu pitting thiab creep kuj |
| Titanium (Ti) | 0.65 – 1.15 | 0.65 – 1.15 | Forms ′ zog theem (Ni₃(Al, Ti)) |
| Aluminium (Al) | 0.20 – 0.80 | 0.20 – 0.80 | Cov ntawv 'theem ntxiv dag zog |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.08 | Tsawg dua lossis sib npaug li 0.08 | Tsawg carbon rau weldability thiab toughness |
| Manganese (Mn) | Tsawg dua los yog sib npaug li 0.35 | Tsawg dua los yog sib npaug li 0.35 | Deoxidizer |
| Silicon (Si) | Tsawg dua los yog sib npaug li 0.35 | Tsawg dua los yog sib npaug li 0.35 | Deoxidizer |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua lossis sib npaug li 0.015 | Xyuas kom toughness |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua lossis sib npaug li 0.015 | Xyuas kom kub ua haujlwm |
| Boron (B) | 0.002 – 0.006 | 0.002 – 0.006 | Grain ciam teb ntxiv dag zog; txhim kho kev ntxhov siab rupture lub neej |
| Cobalt (zeeg) | Tsawg dua lossis sib npaug li 1.00 | Tsawg dua lossis sib npaug li 1.00 | Cov khoom seem |
| Copper (Cu) | Tsawg dua los yog sib npaug li 0.30 | Tsawg dua los yog sib npaug li 0.30 | Cov khoom seem |
Nyem rau rub tawm GH4169 alloy PDF ntaub ntawv tam sim no
2. Chav ntsuas kub txhua yam khoom ntawm GH4169 alloy
Cov xwm txheej: Kev daws teeb meem + Hnub nyoog (Nruab - Pom zoo rau kev pabcuam)
| Khoom | Tus nqi | Test Standard |
|---|---|---|
| Tensile Strength, Qhov kawg (Rm) | Ntau dua lossis sib npaug li 1275 MPa(185 hli) | ASTM E8 / GB / T 228 |
| Tensile zog, tawm los (Rp0.2) | Ntau tshaj lossis sib npaug rau 1035 MPa(150 hli) | ASTM E8 / GB / T 228 |
| Elongation ntawm Break (A) | Ntau dua lossis sib npaug li 12%(gauge ntev 4D lossis 50mm) | ASTM E8 / GB / T 228 |
| Kev txo qis ntawm cheeb tsam (Z) | Ntau dua lossis sib npaug li 15% | ASTM E8 / GB / T 228 |
| Hardness (Rockwell C) | 35-40 HRC | ASTM E18 / GB / T 230 |
| Hardness (Brinell) | 330-380 HWB | ASTM E10 / GB / T 231 |
| Modulus ntawm Elasticity (E) | 200 GPa (29.0 × 10⁶ psi) | ASTM E111 |
| Poisson tus ratio (ν) | 0.29 – 0.30 | – |
Cov xwm txheej: Kev daws teeb meem (Soft - for forming)
| Khoom | Tus nqi |
|---|---|
| Tensile Strength, Qhov kawg | Ntau dua lossis sib npaug rau 965 MPa (140 ksi) |
| Tensile zog, tawm los | Ntau dua lossis sib npaug rau 550 MPa (80 ksi) |
| Elongation | Ntau dua lossis sib npaug li 30% |
| Hardness | Tsawg dua lossis sib npaug li 24 HRC |
Nyem rau saib peb cov ntawv pov thawj kev tshaj lij rau GH4169 alloy
3. GH4169 (Inconel 718) Weldability Guidelines
hwv 4169pom zoo weldability nyob rau hauv ob qho tib si annealed thiab hnub nyoog lub xeev, tab sis nruj tswj cov txheej txheem vuam yuav tsum tau kom tsis txhob microcracks thiab Laves theem segregation.
Txoj Kev Vuam Pom Zoo: Gas-shielded tungsten inert gas (GTAW/TIG)welding yog txoj kev siv ntau tshaj plaws, tso cai rau siab - tswj qhov tseeb.Electron beam vuam (EBW)thiabLaser beam vuam (LBW)yog siv rau qhov tseeb, siab -zog- vuam ceev.
Vuam Hlau:Siv cov hlau sib txuas (xws li Inconel 718 hlau / AWS A5.14 ERNiFeCr-2) kom muaj kev ntseeg siab ntawm cov hlau.
Kev kho deg:Vuam yog ua tau zoo tshaj plaws nyob rau hauv cov kev daws teeb meem -annealed lub xeev kom txo tau tawg.
Kev Txhaum Cai:Txhawm rau tiv thaiv kev mob - kev laus tawg thiab liquefaction tawg hauvcua sov- thaj tsam cuam tshuam (HAZ), tswj cov cua kub tsis tshua muaj hluav taws xob thiab siv cov hlaws txuas txuas ntxiv (tsis txhob wobbling weld hlaws).
Ua ntej-welding kev kho mob:Ua tib zoo ntxuav qhov chaw kom tshem tawm cov roj, roj, thiab oxide txheej kom tsis txhob muaj kab mob.
Tom qab-weld heat treatment (PWHT):Tom qab-weld solution annealing thiab aging yog qhov tseem ceeb rau kev rov ua kom muaj zog. Ib qho txheej txheem kev kho cua sov yog: tuav ntawm720℃rau 8 teev, Lub qhov cub txias rau 620 degree, tuav620℃rau 8 teev, thiab tom qab ntawd cua txias.
GH4169 (Inconel 718) Weldability thiab Machining
4. GH4169 (Inconel 718) Machining Guidelines
ib 718yog cais raws li ib qho nyuaj -rau- cov khoom siv tshuab, tsuas yog nyob ib ncig ntawm 12% hauv AISI Machinability Index.
Tshuab Rigidity:Siv cov cuab yeej siv tshuab nruj heev thiab muaj zog kom txo qis kev vibration thiab sib tham, yog li tsis txhob ua haujlwm hnyav.
Cov cuab yeej:Siv cov cuab yeej ntse, zoo rake kaum carbide (PVD lossis CVD coated). Cov cuab yeej ceramic tuaj yeem siv rau siab - nrawm nrawm.
Txiav ceev thiab pub tus nqi:
Tsawg ceev:Siv cov kev txiav qis qis, feem ntau nyob rau hauv thaj tsam ntawm 15-30 m / min (siab dua tuaj yeem siv nrog cov cuab yeej tshwj xeeb).
High / Constant Feed Rate:Siv tus nqi siab thiab tsis tu ncua los xyuas kom meej tias cov cuab yeej taw qhia ib txwm ua ntej ntawm kev ua haujlwm -thaj chaw uas tsim los ntawm kev txiav yav dhau los.
Qhov tob ntawm Txiav:Qhov tob ntawm kev txiav yuav tsum txaus kom nkag mus rau hauv qhov chaw ua haujlwm - txheej txheej hardened tsim thaum txiav dhau los.
Coolant:High-siab, siab- ntws- tus nqi cua txias yog qhov tseem ceeb rau kev ua kom sov thiab tshem tawm cov nti.
Tool life Management:Cov cuab yeej yuav tsum tau tshuaj xyuas ntau zaus, vim tias kev ua haujlwm nrawm nrawm thiab kub siab tuaj yeem ua rau cov cuab yeej hnav ntxov ntxov.
Hu rau peb los kho GH4169 cov khoom kom haum rau koj qhov project qhov ntev
5. Vim li cas cov khoom siv raw ntawm Gnee Alloy?
Qhov zoo ntawm koj cov welds tsuas yog zoo li qhov chaw ntawm cov hlau. Peb muab kev lag luam zoo kom paub meejMuaj Durability:
✅ Optimized Surface Finishes:Peb muab qhov ci ci -annealed lossis precision-pickled nto uas txhim khu weld hlaws adherence thiab tiv thaiv roj porosity.
✅ Kev Ua Raws Li Ntiaj Teb:Ua raws nraim nrogAMS 5596, AMS 5589, thiab ASTM B637qauv.
✅MTC 3.1 Traceability:Tag nrho cov cua sov- cov ntaub ntawv txheeb xyuas muab nrog txhua qhov kev txiav txim kom ntseeg tau tias muaj tshuaj lom neeg sib xws.
✅Sỉ ib:Tau txais txiaj ntsig los ntawmDirect Hoobkas Nqentawm ob qho tib si me me -batch R&D thiab loj- nplai cav ntau lawm.
Gnee Steel GH4169 (inconel 718) Daim ntawv pov thawj
📦 Ntim thiab Shipping
Tag nrhoNickel Raws li Alloycov khoom tau ntim nrog cov txheej txheem hauv qab no:
Ntoo pallets los yog crates
Moisture -cov ntaub ntawv pov thawj
Daim ntawv lo nrog rau lub tshuab hluav taws xob, tus qauv, thiab cov ntawv loj
Shipped thoob ntiaj teb los ntawm hiav txwv, huab cua, los yog nthuav qhia
Gnee Steel GH4169 Khoom Ntim
Tiv tauj peb rau tus nqi xa tawm tshiab tshaj plaws rau GH4169 Alloy
FAQ
Q1: Kuv puas xav tau kev tshaj tawm -weld kho cua sov (PWHT) rau GH4169?
A: Yog lawm.Thaum nws yuav tsis tawg thaum lub caij txias, GH4169 yuav tsum tau ua kom tiavKev daws + Ob chav Aging voj voogTom qab vuam kom ncav cuag nws qhov siab tshaj tawm lub zog (Ntau dua lossis sib npaug ntawm 1030 MPa) thiab xyuas kom meej qhov chaw vuam sib tw rau lub hauv paus hlau cov khoom.
Q2: Dab tsi muab cov hlau uas kuv yuav tsum siv rau GH4169 tubing?
A: Peb pom zoo kom siv qhov sib txuamAlloy 718 (ERNiCrMo-2)muab tub lim. Rau qee qhov kev siv,ERNiCr-3 (Inconel 82)tuaj yeem siv tau, tab sis lub zog vuam yuav qis dua cov niam txiv hlau ntawm 700 degree.
Q3: Puas yog GH4169 haum rau automated orbital vuam?
A: Yog lawm. Vim nws lub pas dej molten ruaj khov thiab cov yam ntxwv zoo ntub dej, peb cov GH4169 seamless raj yog qhov kev xaiv zoo tshaj plaws rau kev siv lub tshuab orbital vuam hauv aerospace roj kab.
Q4: Kuv puas tuaj yeem txuas GH4169 rau 316L Stainless Hlau?
A: Yog. Nws muaj zoo heev metallurgical compatibility nrog austenitic stainless hlau. Nws feem ntau yog siv los ua qhov siab - lub zog hloov pauv sib koom ua ke hauv cov khoom siv hluav taws xob.
