7075 Aluminium Alloy Powder
Obsah
Přehled o 7075 aluminium alloy powder
7075 aluminium alloy powder is a strong, lightweight powder metallurgy material with excellent mechanical properties and corrosion resistance. It contains zinc as the primary alloying element along with magnesium and copper which give it very high strength comparable to many steels.
7075 aluminium alloy powder can be used to manufacture high performance components via powder metallurgy techniques including metal injection molding (MIM), direct metal laser sintering (DMLS), binder jetting, cold/hot isostatic pressing, and extrusion. Parts made from 7075 aluminium powder attain properties close to those from wrought 7075 alloy.
Some key properties and characteristics of 7075 aluminium alloy powder:
7075 Aluminium Alloy Powder Properties
| Vlastnictví | Popis |
|---|---|
| Složení | Aluminum with zinc (5.1–6.1%), magnesium (2.1–2.9%), copper (1.2–2.0%) and small amounts of other alloying elements |
| Hustota | 2,81 g/cm3 |
| Bod tání | Approx. 635°C |
| Síla | Very high, similar to many steels |
| Odolnost proti korozi | Excellent due to zinc content |
| Powder Particle Shape | Spherical, irregular shaped |
| Powder Size Range | 15- 75 microns |
| Manufacturing Processes | Metal injection molding (MIM), Direct metal laser sintering (DMLS), binder jetting, HIP, extrusion |
Aplikace z 7075 Aluminium Alloy Powder
Some common applications of MIM and additive manufacturing using 7075 aluminium alloy powder include:
7075 Aluminium Alloy Powder Applications
| Průmysl | Aplikace |
|---|---|
| Aerospace | Structural components, fittings, gears, seals |
| Automobilový průmysl | Pistons, connecting rods, gears, sleeves |
| Námořní | Gears, fittings, couplings, propellers |
| Průmyslový | Power transmission parts, machinery components |
| Spotřebitel | Sports equipment like bicycle parts |
| Vojenské stránky | Firearm components, body armor parts |
| Lékařský | Ortopedické implantáty, protetika |
Specifikace a normy
7075 alloy powder can meet various critical industry and military specifications:
7075 Aluminium Alloy Powder Specifications
| Standard | Název |
|---|---|
| AMS 4126 | Aluminum Alloy Powder 7075 |
| ASTM B951 | Standard Specification for Zinc and Zinc Alloy Powders Containing Sub-micron Sized Spheroids |
| ISO 22068 | Specification for atomized aluminum alloy powders for thermal spray applications |
| MIL-DTL-45208 | Detail specification for 7075 aluminum alloy powder and particles in grades A, B and C |
Dodavatelé a ceny
Some leading global suppliers offering 7075 aluminum alloy powder along with indicative pricing:
7075 Aluminium Alloy Powder Suppliers
| Dodavatel | Popis | Cenové rozpětí* |
|---|---|---|
| Kymera International | Wide range of aluminum and aluminum alloy powders | $50-$300/kg |
| Sandvik Osprey | Customized aluminum powders including 7075 | $75-$250/kg |
| Technika TLS | Gas and water atomized aluminum powders | $100-$350/kg |
| Výroba kovových prášků | Various grades of aluminium powders | $80-$275/kg |
| Alpoco UK | Specialists in aluminum MIM powders | $90-$310/kg |
* Price range varies based on order quantity, customized particle size distribution as per application requirements.
How 7075 Aluminium Compares
Comparison of 7075 aluminum alloy powder versus alternatives on key parameters:
Comparison of Aluminium Alloy Powders
| Parametr | 7075 Al Powder | 6061 Al Powder | 316L prášek z nerezové oceli |
|---|---|---|---|
| Hustota | 2.8 g/cc | 2,7 g/cc | 7,9 g/cc |
| Síla | Velmi vysoká | Střední | Vysoký |
| Odolnost proti korozi | Vynikající | Dobrý | Vynikající |
| Tepelná vodivost | Vynikající | Dobrý | Střední |
| Náklady | Střední | Nízký | Vysoký |
| Vyrobitelnost | Velmi dobře | Velmi dobře | Acceptable |
7075 aluminium alloy stands out with it’s exceptional strength-to-weight ratio, corrosion resistance, thermal properties, balanced with good manufacturability via MIM and powder bed AM processes compared to alternatives like 6xxx series aluminum or stainless steel.
Key Considerations for 7075 Aluminium Powder
Some key considerations when working with 7075 aluminium alloy powder:
7075 Aluminium Alloy Powder Úvahy
| Úvaha | Podrobnosti |
|---|---|
| Difficulty of Printing | Moderately challenging due to higher zinc and copper content leading to powder aging effects during MIM and AM processes |
| Potřeby následného zpracování | Heat treatment required to attain optimal strength and balance mechanical properties |
| Povrchová úprava | Very good finish achievable after post-processing |
| Rozměrová přesnost | HIP can minimize shrinkage to attain tolerances below 0.5% |
| Náklady | Higher cost than 6061 but lower than titanium or nickel alloys |
| Dopad na životní prostředí | Generally positive due to high recyclability of aluminium and powder metallurgy processes efficiency over traditional manufacturing methods |
Nejčastější dotazy
7075 Aluminium Alloy Powder FAQs
Q: What is 7075 aluminum alloy?
A: 7075 aluminium alloy powder belongs to the 7xxx aluminum series and contains high amounts of zinc, magnesium and copper. The key features of 7075 alloy are resistance to corrosion, toughness and high strength-to-weight ratio.
Q: Is 7075 alloy corrosion resistant?
A: Yes, 7075 aluminium alloy has excellent corrosion resistance due to its key alloying element zinc which provides superior protection compared to other aluminium alloys like 6061 or 6082.
Q: What is the difference between 7075 aluminum and 7075?
A: 7075 aluminium refers to the alloy in its wrought form, while 7075 aluminum refers specifically to this same alloy composition in powder form. So 7075 aluminum powder would be used in powder metallurgy processes like MIM or metal 3D printing.
Q: What is 7075 aluminum powder used for?
A: 7075 aluminium alloy powder finds usage across aerospace, defense, automotive, medical and other demanding industries due to its high strength and corrosion resistance properties. It offers high performance in parts with low material thickness requirements.
Q: What are the mechanical properties of 7075 aluminum powder?
A: Sintered 7075 aluminum alloy powder can achieve tensile strength levels up to 550 MPa, yield strengths of 470 MPa, elongation over 11% and hardness values exceeding 150 HB. These are close to wrought 7075 alloy properties.
Q: What powder metallurgy methods use 7075 aluminum powder?
A: Major powder technologies using 7075 Al powder include metal injection molding (MIM), direct metal laser sintering (DMLS), binder jetting/powder bed fusion (PBF) and cold/hot isostatic pressing (HIP) followed by machining and finishing.
Q: Is 7075 aluminum powder better than 6061?
A: Yes, 7075 aluminium powder is much stronger than 6061, with fatigue strength almost double that of 6061. However it also costs 50-100% more than 6061 powder depending on customized specifications.
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