Difficulties in aluminum welding
Technology NewsVery easy to oxidize. In the air, aluminum is easily combined with oxidation to form a dense aluminum oxide film (about 0.1-0.2um thick) , the melting point is high (about 2050 ℃), far exceeding the melting point of aluminum and aluminum alloys (about 600 ℃). The density of alumina is 3.95-4.10g/cm3, about 1.4 times that…
Grinding and polishing methods
Technology NewsGrinding before welding Grinding range: 15-50mm on both sides of all welds. Operation method: when grinding long and wide welds, use angle grinder or straight shank grinder equipped with stainless steel bowl brush to grind along the weld direction; For the weld requiring laser tracking automatic welding, the straight shank grinder can only be used…
Arc welding technology
Technology NewsArc welding technology is divided into six welding methods: manual arc welding, submerged arc welding, gas tungsten arc welding, gas metal arc welding, plasma arc welding and tubular wire arc welding. The following is the introduction of these six different welding methods: 1.Manual arc welding Manual arc welding is one of the earliest and still…
Some bending methods
Technology News1)Suspended bending (also called three-point bending) The punch presses the workpiece into the die without pressing it against the die wall. When the punch core moves down, the edge of the workpiece bends upward and forms an included angle. The deeper the punch presses the workpiece into the die, the smaller the angle. At this…
Types of sheet metal materials
Technology NewsThere are many sheet metal materials suitable for stamping. Sheet metal materials widely used in electronic and electrical industries include the following: Cold-rolled steel sheet / SPCC The steel ingot is continuously rolled into steel coil or sheet with required thickness by cold rolling mill. These coils and sheets are SPCC. There is no protection…
Sand blasting
Technology NewsSand blasting is widely used on metal surfaces The purpose is to overcome and cover up some defects of aluminum alloy in the machining process and meet some special requirements of customers for product appearance.The principle is only to impact the accelerated abrasive particles on the metal surface to remove embroidery, deburring, oxide layer or…
What is the role of the bending machine in the processing of automotive sheet metal parts?
Technology NewsCurrentlyAutomotive sheet metal partsThere are many types of bending machines, which can be divided into mechanical (servo motor) and hydraulic type according to the rotation mode. According to the control system, it can be divided into simple manual bending machine, ordinary domestic digital positioning bending machine, process control digital full-function bending machine. According to the…
What are the common processing methods for automotive sheet metal parts?
Technology NewsThe process of using various equipment to change the shape of sheet metal is called sheet metal processing, and the main processes are sheet metal shearing, bending forming, welding, riveting, etc.It can also be processed by stamping, bending, stretching, etc.car parts, We can use it to carry out a series of treatments on metal. Common…