(Editor) Cabinet Handles,Kitchen Cabinet Handles,Cabinet Door Handles,Cabinet Door Knobs JINLUN METAL WARE CO,. LTD , https://www.jinlunhardware.com
3D printed metal material stainless steel
Steel is an alloy containing iron as its main component, and it has a higher frequency of occurrence than aluminum in our lives. The stainless steel (StainlessSteel)'s rust and corrosion resistance is due to the formation of a chromium-rich oxide film on its surface. The material is relatively hard and available in a variety of colors, such as silver, bronze and white, which are often used in SLM (optional). Laser melting technology in the 3D printing process.
In fact, the stainless steel's rust and corrosion resistance are relative. The test shows that the corrosion resistance of steel in the weak medium such as atmosphere and water and oxidizing medium such as nitric acid increases with the increase of chromium content in steel. When the chromium content reaches a certain percentage, the corrosion resistance of steel changes suddenly. From rust to rust, from corrosion resistance to corrosion resistance.
The characteristics of stainless steel are as follows:
1. Good corrosion resistance and long-lasting durability than ordinary steel.
2. High strength.
3. It is resistant to high temperature oxidation and therefore resistant to fire.
4. Easy plastic processing and good welding performance.
5. High finish and easy maintenance.
The traditional manufacturing process (cutting) processing of stainless steel materials has the following difficulties.
1. Large cutting force and high temperature lead to tool wear.
Since the strength of the stainless steel is large, the tangential stress during cutting is large, and the cutting force is large. In addition, the material has poor thermal conductivity, resulting in high cutting temperatures, so the tool is prone to wear.
2. The work hardening is serious.
Some high-alloy stainless steels tend to work harder during machining and cutting, usually several times that of ordinary carbon steel. The cutting of the tool in the work hardening zone shortens the service life.
3. Easy to stick to the knife.
Stainless steel has the characteristics of strong cutting and high cutting temperature during processing. When the tough cutting passes through the rake face, it will cause sticking, welding and other sticky knives, which affect the roughness of the surface of the machined part.
The SLM technology processing stainless steel solves the drawbacks of traditional cutting methods. 3D-printed stainless steel materials use SLM technology to create parts that are not limited by geometry, shortening the development and manufacturing cycle of the product, and enabling the rapid and efficient manufacturing of small-volume complex parts. 3D printed stainless steel is often used in jewelry, functional components and art. The 3D printed tableware in the figure below is made of stainless steel and finally made of silver on the outside.
3D printed silver plated stainless steel cutlery
3D printed artwork using stainless steel (Image source: shapeways.com)
3D printed stainless steel complex object (Source: azom.com)
Industrial objects printed with stainless steel
Direct printing of stainless steel jewelry has a more mature application in China. As we mentioned before, the application of 3D printing technology in the jewelry industry is very early. It is generally used in the production of wax molds, using a castable photosensitive resin or wax to print a jewelry wax pattern, and then casting the lost wax into a metal. jewelry. The use of 3D printed stainless steel jewelry has greatly improved production efficiency, shortened the time by more than 40%, and reduced the production cost by more than 20%, especially for the custom processing of complex structures and small batches of individualization.
3D printed jewelry contrast with traditional crafts