2. CNC machining metal types
Metals are widely used in CNC machining with their properties of precision, strength, and machinability. CNC machining metals are applied in different industries, for example, automotive parts, marine parts, aerospace parts, medical parts, and others.
Whether it is prototypes or engineering models, CNC metals are always a top choice. Some are general use metals like aluminum with a low cost. Some metals can withstand extremely harsh environments and are durable, like titanium.
Below are types of introduction of CNC machining metal.
2.1 Aluminum
Aluminum is a lightweight alloy with excellent strength-to-weight ratio, high thermal and electric conductivity, low density, and natural deterioration resistance. It has superb machinability, welding, and electroplating residential or commercial properties as well as great corrosion resistance.
Lightweight aluminum is a material that is easy to cut and machine, and aluminum alloys can be quickly, properly grated, pierced, and machined using CNC machining. After machining, lightweight aluminum has a low threat of contortion or issues and is very easy to polish and color.
Aluminum is among the most common materials used in the aerospace, medical, auto and motorcycle industries.
Popular aluminum types include 6061T6, 7075T6. Check all the cnc machining aluminum types offered by ECOREPRAP here.
2.2 Stainless steel
Stainless steel is one of the favorite cnc machining metals for its rust resistance. There is at least 10.5% chromium inside which makes stainless corrosion resistant.
Stainless steel is classified into austenitic, ferritic, martensitic, and duplex by crystal structure.
Stainless steel parts have a lot of advantages, including corrosion resistance, high tensile strength, durability, temperature resistance, easy fabrication, and form-ability. They are widely used in a broad industry, including building and construction, automobile, aerospace, and more.
Popular stainless steel types include 304, 316. Check all the cnc machining stainless steel types offered by ECOREPRAP here.
Read the blog Stainless Steel CNC machining to get a full comprehension of how to machine stainless steel.
2.3 Carbon steel
As an alloyed steel, carbon steel is the term normally made use of for alloys of steel that are not stainless. Carbon steel can consist of light steels which are usually cost-effective and very easy to device. Higher-end carbon steels are likewise fairly easy to machine and offer high-wear resistance and tensile toughness.
Popular carbon steel types include A36, 1018. Check all the cnc machining carbon steel types offered by ECOREPRAP here.
2.4 Tool steel
Tool steel is one type of carbon alloy steel which are especially suitable for making tools, including cutting devices, dies, hand tools, blades, and others. They have unique hardness and are abrasion resistant, not easy to deform.
For CNC machining tool steels, heat treatment is always used to increase the hardness after CNC machining.
Popular tool steel types include A2, D2 and S7. Check all the cnc machining tool steel types offered by ECOREPRAP here.
2.5 Brass
Brass is a functional copper-zinc alloy. It is mechanically stronger and has better deterioration than copper. Brass has excellent wear resistance and machinability.
Brass is widely used in electrical goods, consumer goods, architecture, automotive, and others.
2.6 Copper
Copper is commonly 99% pure even more. The remaining 1% is impurities such as lead, oxygen, or silver.
Copper is known for its electric and thermal conductivity, which finds wide application in the power, automotive, clinical, and aerospace industries.
Popular copper types include C101, and C110. Check all the cnc machining copper types offered by ECOREPRAP here.
2.7 Titanium
As mentioned above, Titanium can withstand very harsh environments. It is an advanced material with excellent corrosion resistance, strength-to-weight ratio, and biocompatibility.
Titanium is an ideal choice for engineering parts challenged by medical, energy, chemical processing, defense and aerospace industries.
Due to Titanium’s high hardness, the cnc machining of titanium requires a lot of expertise and experience. Titanium CNC machining also has a high requirement on the cutting tools. Sandblasting and Passivation is two common surface finishes for CNC machined titanium.
Popular copper types include Grade 1, and Grade 2. Check all the cnc machining copper types offered by ECOREPRAP here.
2.8 Nickel Alloy
With excellent corrosion resistance and high-temperature stability, nickel alloy CNC machined parts are widely used in the chemical, aerospace, electronics and medical industries.
Invar, Kovar, and Inconel are well-known nickel alloys for CNC machining.
2.9 Magnesium Alloy
Magnesium, a usual material for die casting, is increasingly popular for CNC machining because it is lightweight and extremely machinable in regards to feed prices. Machined magnesium also generates exceptional surface area finishes due to shorter chips being produced throughout the machining process.
Magnesium is commonly used for die casting. But it has become more popular in CNC machining because of its lightweight and machinable properties.
Magnesium has a low ignition temperature, which makes it susceptible to combustion during CNC machining. To avoid combustion, we shall use special cooling, purposeful tools and controlled machining parameters.
AZ31B Magnesium is usually used for CNC machining.
2.10 Zinc Alloy
Zinc alloy metal is an inexpensive material, yet with good mechanical toughness. Zinc parts can be die cast first and then have important functions machined by CNC, reducing general CNC machining time and cost. The automotive industry makes substantial use CNC machined zinc alloys.
Zamak 3 is one of the most widely use of the quality of Zinc, offering exceptional dimensional security, together with other physical and mechanical buildings.
