Фахівці, які займаються проектуванням механічних конструкцій, часто використовують матеріали з алюмінієвих сплавів, і матеріали з алюмінієвих сплавів підрозділяються і мають багато сортів. Основною причиною вибору матеріалів з алюмінієвих сплавів є поєднання міцності та щільності.
Я в основному використовував два сорти алюмінієвих сплавів, Я проаналізую два матеріали, the choice of aluminum alloy materials.
The first one is the 5000 алюмінієвий сплав серії, which is mainly used for sheet metal structural parts. The 5000 series aluminum plate belongs to the more common alloy aluminum plate series. The main other elements are magnesium, і вміст магнію між 3-5%. Also known as aluminum-magnesium alloy.
The main features are: low density, висока міцність на розрив і високе подовження. The density is lower than other series of aluminum alloys. The processing technology is continuous casting and rolling, which belongs to the series of hot rolled aluminum sheets. Mainly in China's 5000 series aluminum plate is one of the more mature aluminum plate series.
Often used is the 5052, which has good molding processability, стійкість до корозії, зварюваність, втомна міцність, medium static strength, used in the manufacture of aircraft tubing, паливні баки, and transportation vehicles, частини корабля з листового металу.
The second type is the 6000 серії алюмінієвих сплавів, which are mainly machined parts. Unlike the 5000 серії, в 6000 series alloys are added with silicon, so that the hardness of the 6000 series aluminum alloy is greatly improved, and the machining performance is very good. It is also suitable for applications where corrosion resistance and oxidizing requirements are high. Easy to layer, high strength and strong corrosion resistance. I often use 6061 aluminum alloy for machined parts, and the cutting performance is good (5000 series is not good).
Let me talk about the aluminum alloy status code:
Ф: free processing state (uncommon)
О: Annealing state (the mechanical professional should know, I also sigh here, annealing refers to slowly heating the metal to a certain temperature, for a period of time, and then cooling at a certain speed. This can reduce the material. Твердість, improve the cutting process performance, eliminate residual stress, stabilize the size, it is not easy to crack when the sheet metal is bent. Simply speaking, the aluminum alloy O state is soft and soft.
Х: Стан загартування (also known as cold work hardening, also knowledge in heat treatment courses, твердість, сила, wear resistance increased, not easy to process)
Т: heat treatment state (T code must be followed by one or more digits, is a stable state product)