An automated trimming system is provided that includes a vision system identifying the number of rings positioned within a coil and sheared positions where the rings need to be cut. One or more trimming mechanisms receive the sheared positions and proceed to cut the rings at the sheared positions. A hook arrangement interfaces with the coil for transferring the coil to a trimming area. Moreover, an automated trimming system is provided that includes a coil having a plurality of rings. One or more trimming mechanisms select a number of rings from the coil and proceed to form a sample of desired length, by cutting a portion of the rings. A receiver unit receives the sample from the one or more trimming mechanisms to evaluate the quality of the sample.

A process for producing a high-grade steel tube includes the steps of: providing a tubular blank of an austenitic high-grade steel, wherein the high-grade steel comprises in weight % no more than 0.02% carbon, no more than 1.0% manganese, no more than 0.03% phosphor, no more than 0.015% sulfur, no more than 0.8% silicon, no more than 17.5% t to 18.5% nickel, no more than 19.5% to 20.5% chromium, no more than 6.0% to 6.5% molybdenum, no more than 0.18% to 0.25% nitrogen, no more than 0.5% to 1.0% copper, and a remainder of iron and unavoidable impurities; and cold-forming the blank into a tube.

An automated trimming system is provided that includes a vision system identifying the number of rings positioned within a coil and sheared positions where the rings need to be cut. One or more trimming mechanisms receive the sheared positions and proceed to cut the rings at the sheared positions. A hook arrangement interfaces with the coil for transferring the coil to a trimming area. Moreover, an automated trimming system is provided that includes a coil having a plurality of rings. One or more trimming mechanisms select a number of rings from the coil and proceed to form a sample of desired length, by cutting a portion of the rings. A receiver unit receives the sample from the one or more trimming mechanisms to evaluate the quality of the sample.

The invention relates to a method of manufacturing steel parts of sheet metal by hot deep drawing characterized by bringing the semi-finished product into austenitic condition by heating, subsequently cooling its locations, which would undergo undesirable deformation, to a temperature below the austenite temperature, and then completing the forming process.

A process for producing a high-grade steel tube includes the steps of: providing a tubular blank of an austenitic high-grade steel, wherein the high-grade steel comprises in weight % no more than 0.02% carbon, no more than 1.0% manganese, no more than 0.03% phosphor, no more than 0.015% sulfur, no more than 0.8% silicon, no more than 17.5% t to 18.5% nickel, no more than 19.5% to 20.5% chromium, no more than 6.0% to 6.5% molybdenum, no more than 0.18% to 0.25% nitrogen, no more than 0.5% to 1.0% copper,and a remainder of iron and unavoidable impurities; and cold-forming the blank into a tube.