Are you interested in welding stamping steel? Supplier Evek GmbH offers to buy stamping steel in any quantity at an affordable price in a wide range. We provide product delivery anywhere in the continent. The price is optimal.

Relevance

Most die steels (with the exception of those designed for hot forming dies) contain a high percentage of carbon, and are not subject to conventional welding processes. This is why fusion and friction welding are considered the most common techniques for the permanent joining of die parts. Evek GmbH offers to buy stamping steel at an affordable price in a wide range. We provide delivery of products anywhere in the continent. The price is optimal.

Preparing for Welding

Preparation for welding consists in elaboration of allowances for melting, upsetting and further processing of working edges. The die workpieces should not have spatial and flat curvature. The surface of the die tooling is also cleaned from dirt, scale, residual process lubricants and burrs. Chemical or mechanical methods are used. Butt welding equipment is selected according to the necessary pressure, heating temperature, and productivity parameters (compression and upsetting time).

Friction welding

For friction welding the range of possible diameters of round pieces (punches, ejectors, etc.) is 10 ... 100 mm and for resistance electric welding the range is 8 ... 85 mm. Friction welding of stamped steels occurs due to the heat that is generated by the compression and subsequent rotation in different directions of the joined workpieces. The positive features of the process are:

• Low energy consumption;
• Stable quality of the resulting welded joint;
• The lower level of requirements to the quality of the ends of blanks;
• Absence of harmful thermal and radiant emissions at welding;
• Easy implementation of the process, as well as the possibility of mechanization/automation of operations.

When developing process parameters for friction welding of workpieces of different stamped steel grades, it is taken into account that the equal strength of the welded joint approximately corresponds to the mechanical strength of the less resistant stamped steel,

Contact electric welding

In contact electric welding of articles made of stamped steel, heating of the adjacent end parts is due to the thermal effect of the electric current flowing over the welded workpieces. Technological conditions of the process of electric butt welding

• The density of the welding current during heating and subsequent melting;
• The voltage at the jaws of the gripping equipment;
• Deposition pressure.

Sequence

Reach (free length) of the blanks joined in this way from the stamped steels should not exceed 10 ... 15 mm (smaller values are used for electric butt welding of high-speed steels). The process is carried out in the following sequence. Preheating of the blanks is performed first, followed by melting of the end sections and then their upsetting. Regardless of the technology used, after welding of the stamped steel, annealing is obligatory. Annealing is carried out in electric furnaces.

To buy. Supplier, price.

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