Metal laser cutting machine can cut stainless steel, carbon steel, alloy steel, silicon steel, spring steel, aluminum, aluminum alloy, galvanized sheet, galvanized sheet, pickling sheet, copper, silver, gold, titanium and other metal sheets and Pipe cutting. Used in sheet metal processing, aviation, aerospace, electronics, electrical appliances, subway accessories, automobiles, grain machinery, textile machinery, engineering machinery, precision accessories, ships, metallurgical equipment, elevators, household appliances, craft gifts, tool processing, decoration, advertising , metal external processing, kitchen utensils processing and other manufacturing and processing industries.

Each metal has its own advantages and uses, for example certain types of steel are ideal for use in household appliances, while others are suitable for use in the automotive or marine industry, gas tanks, construction, etc. Also, material grades with the same chemical composition may have different qualities depending on the manufacturing method, eg: hot rolled steel vs cold rolled steel.

So, what are the differences between hot-rolled steel and cold-rolled steel for laser cutting materials? Lixing laser technical engineers will answer for you.

Analysis of the difference between hot-rolled steel and cold-rolled steel for laser cutting materials:

1. The rolling principle and performance of hot-rolled steel and cold-rolled steel

Hot-rolled steel is a steel that has been heated and rolled at high temperature. Its strength is not very high, but it is sufficient for our use. Its plasticity and weldability are better, so we commonly use it; At the recrystallization temperature, the temperature of the billet is raised above 1000°C to allow the steel to recrystallize inside, and then sent to the rolling machine. The required metal sheet (3 mm and above) or profile can be obtained by continuous rolling, and hot rolling will not change the structural properties of the metal. Hot-rolled steel can be produced in large quantities, and its market price remains low. Hot-rolled steel has a scaly surface, an oxide that forms at high temperatures, so hot-rolled products are easily identified by touching the surface. laser cutter

Cold-rolled steel is ordinary hot-rolled steel that has undergone strong drawing beyond the strain hardening stage. It has high strength, but poor toughness and weldability, and is relatively hard and brittle. Cold rolling is a steel plate obtained by further rolling the No. 1 steel plate to a target thickness at room temperature. The thickness of cold-rolled steel plate is more accurate, the surface is smooth and beautiful, and it also has various superior mechanical properties, especially in terms of processing performance. Because cold-rolled raw coils are relatively brittle and hard, they are not suitable for processing, so cold-rolled steel sheets usually require annealing, pickling and surface smoothing before being delivered to customers.

2. Application of hot-rolled steel and cold-rolled steel

The precision of hot-rolled steel is not high, and it has a huge advantage in price. Features of hot-rolled products: hot-rolled products have excellent properties such as high strength, good toughness, easy processing and good weldability, etc. Hot-rolled steel is widely used in ships , automobiles, bridges, construction, machinery, pressure vessels, pipes, truck frames, doors and shelves, rails, tram parts and other manufacturing industries.

Cold rolled steel is a kind of cold working, which includes cold rolling and cold drawing. The former is used for sheet metal fabrication, and the latter can be used for rectangular and round bars. Advantages of cold processing Accurate finished product size, smooth surface, higher strength performance. The surface of cold rolled steel is already smooth enough that the finished product does not require extensive additional surface finishing. Cold-rolled/cold-drawn steel applications include: metal furniture, structural parts, household appliances, water heaters, metal containers, fan blades, pans, computer cabinets, etc.

The above is the analysis of the difference between hot-rolled steel and cold-rolled steel for laser cutting materials. The main products of Lixing Laser include laser cutting machines , full CNC hydraulic bending machines, laser welding machines, laser marking machines and laser application automation equipment, etc., which are used in Sheet metal processing, chassis cabinets, lighting, mobile phones, 3C, kitchen utensils, bathrooms, auto parts machining and hardware industries. Click on the right to make an appointment for free proofing, online consultation, free telephone consultation, follow Lixing Laser WeChat service account to learn more about laser cutting machines.