Catalogs >
Jet Line Engineering >
MODEL HWP-50E

MODEL HWP-50E
2Pages

Catalog excerpts

Product Information MODEL HWP-50E Hot Wire Process Contoured Wave AC High Capacity Feed Head Increased Deposition Rate Simple to Use Standard Hot Wire System Custom-designed Torch Contoured-Wave Hot Wire Power Supply Dual-Axis Wire Positioner Introduction The hot wire process is used in applications where a high deposition of the ller wire is desired. The process is used primarily with the GTAW (TIG) or the PAW (Plasma) welding process. Hot wire welding provides deposition rates more normally associated with the GMAW (MIG) welding process but with the added advantages offered by GTAW (TIG) and PAW (Plasma) welding. These advantages include better control of the heat input because the welding current is independent of the wire feed speed. This leads to reduced dilution in overlay welds and better side wall fusion in deep groove welds. Description A complete Jetline hot wire system consists of: Contoured-wave hot wire power supply Hot wire power control Heavy-duty wire drive unit Wire feed speed control Hot wire torch Hot wire torch positioner assembly The hot wire system is supplied as a completely integrated package with all the necessary interconnecting cables and hoses. The system has universal ttings to allow it to t on any GTAW (TIG) or Plasma (PAW) torch and is supplied in a "readyto-weld" condition. This unique power supply is manufactured by Jetline Engineering specically for the hot wire process. The system features a contoured-wave, AC output. Experience has shown that the use of an AC power supply enhances the hot wire deposition and reduces arc-blow problems experienced with conventional hot wire systems using DC hot wire power. The output of the power supply is controlled using a solid-state control module. This module contours the AC waveform to create one which closely simulates a sine wave. The use of sinusoidal AC voltage greatly improves the ow of the hot wire into the weld pool. Frequency is adjustable from 50 to 200 Hz. This waveform permits higher wire feed speeds and currents leading to increased deposition rates and welding speeds. The power supply provides up to 200 amps of hot wire current at voltages which are adjustable from 2 to 15 VAC. The voltage is regulated by a potentiometer on the hot wire power control or may be controlled by a remote 0 to 10 VDC signal. Meters are provided to indicate hot wire voltage and current, and a gas purge button is supplied. Heavy-Duty Wire Drive Unit The wire drive unit consists of a four-roll feedhead driven by a high capacity, DC motor. The wire drive unit is mounted on a base which also supports the wire reel holder. A wire straightener is supplied as standard with the system. The wire feed speed is regulated by the 9629HW microprocessor control and is adjustable from 12 to 600 IPM (30 to 1,525 cm/min). This control permits wire inching, wire speed ramp up at the start and wire retract at the end of the weld. 15 Goodyear St, Irvine, California, 92618 U.S.A. • Tel: (949) 951-1515 • Fax: (949) 951-9237

Open the catalog to page 1

HWP-50E HOT WIRE PROCESS Hot Wire Torch The hot wire torch is designed to guide the wire into the weld pool and to conduct the AC hot wire current to it. The torch includes gas shielding; this serves to protect the heated wire as it enters the weld pool. The torch is rated at 200 amps AC. The hot wire process is used for applications which have high quality requirements such as are found in the fabrication of pressure vessels and parts for the nuclear industry. Welds of this nature are generally radiographed, ultrasonically inspected or liquid penetrant checked. Applications include...

Open the catalog to page 2