Sauer Gmbh

Dmg Mori Ultrasonic Lasertec Gmbh

Christian Kledwig

Holger Perfahl

Benjamin Bax

The invention relates to a device and a method for process monitoring in a deposition welding method. The object of the invention is to provide a device in which the process monitoring in a deposition welding method is further optimized, and process deviations that can affect the quality of a product are reliably avoided. Surprisingly, the devices known in the state of the art for process monitoring in deposition welding can be developed to a substantially optimized process monitoring, in which said devices are supplemented by equipment for detecting a time period during which the detected surface region is greater than a predetermined minimum value, and equipment for discontinuing the deposition welding process in an automated manner in the event that the time period of the detected surface region is greater than a predetermined time value.

Device for process monitoring in a deposition welding method

The innovation relates to a device and a method for measuring a powder mass flow for powder cladding. Before the powder cladding, the powder mass flow is set by means of a powder mass determining device and a powder mass flow sensor is calibrated on the basis of the setting. Then a powder switch is used to begin the powder cladding without interrupting the delivery of the powder mass. During the powder cladding, the powder mass flow is monitored by means of the powder mass flow sensor.

Method and device for measuring a powder mass flow for powder cladding

A deposition welding process monitoring device that includes an optical detector (), a conversion unit () and an evaluation unit () with equipment (a) configured to determine a monitoring region (a) of an image (), equipment (b) configured to repeatedly detect a surface region (b) of the monitoring region (a) in which a temperature-dependent intensity distribution exceeds a specified minimum value (), equipment (c) configured to detect a time period (c) during which the detected surface region (b) in which the temperature-dependent intensity distribution exceeds the specified minimum value () is greater than a specified limit value (), and equipment (d) configured to discontinue the deposition welding process if the time period (c), during which the detected surface region (b) in which the temperature-dependent intensity distribution is greater than the specified limit value (), is greater than a specified time value ().

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Kempten, Germany

Christian Kledwig