Since its advent, laser technology has received widespread attention from the society and is known as one of the four great inventions of the 20th century. With the continuous development of the times, the application of laser technology has also been changing. In recent years, the power of lasers has been continuously improved, and its application has gradually penetrated into the field of heavy industrial manufacturing. In the Varvsindustrin, laserskärning, svetsning och rengöringsprocesser har börjat ersätta vissa gamla processer, vilket har haft en viss inverkan på hela varvningsindustrin . För närvarande har stora stora varv i Europa, USA och Japan antagit laserprocessningsteknik i stor skala .}}
Tillämpning av laserskärning i varvsindustrin
The shipbuilding industry has very high requirements for the accuracy of hull segment transfer, and the gap of frame transfer must be controlled within 1mm. In the past, shipbuilding companies generally used plasma cutting to cut ribs. In order to ensure that the assembly gap meets the standard, a trimming allowance was set on the ribs, which required on-site manual trimming during on-site Montering . Kvaliteten på den erhållna trimningen var ojämn . manuell trimning kommer att orsaka resterande oxider i den snittade sömmen . samtidigt ökar det också arbetsbelastningen för montering och förlänger monteringscykeln, vilket resulterar i en betydande förlängning av hela segmentkonstruktion
At present, in the shipbuilding industry, the main cutting methods for hull plate parts are flame cutting, plasma cutting, shearing and laser cutting. Compared with laser cutting, other cutting methods have many shortcomings, such as flame cutting and plasma cutting will lead to wide cutting seams, poor cutting accuracy, easy to produce harmful gases, and cause greater pollution to the environment. The marine steel plates cut by Laser har god skärkvalitet, god vertikalitet hos skärytan, ingen slagg, tunn oxidskikt, slät yta, ingen sekundär bearbetning, kan direkt svetsas och ha liten termisk deformation och hög kurvskärningsnoggrannhet, vilket effektivt reducerar koordinationstiden och inser barriärfri skärning av högstyrka av fartygsplattor .}}
As early as 1992, Vosper Thornycroft Shipyard was the first to use laser cutting equipment in Europe. Since then, shipyards in European countries have installed complete sets of equipment for welding and cutting. In the United States, Bender Shipyard is the first shipyard to use high-power laser cutting equipment. In 1999, Bender used a 6KW Tanaka LMX ⅲ Laser och gjorde stora framsteg inom tillverkningskostnader och kvalitet .
In recent years, "precision shipbuilding" and "fast shipbuilding" have become the main trends in the development of the shipbuilding industry, and laser cutting technology has developed rapidly. The shipbuilding industry mainly uses steel plates as raw materials. Using lasers to cut plates can replace some processing methods that require large mold punching, greatly shortening the production cycle and reducing processing Kostnader . Användningen av laserskärningsmaskiner eliminerar monteringsbidrag, eliminerar fenomenet på platsreparationer och skärning, minskar arbetskraft och plattavfall, påskyndar avsevärt rammonteringen och förbättrar monteringskvaliteten avsevärt .}
