MODEL HWP-50E0 pages

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