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J

anuary

2011

65

T

echnology

U

pdate

THE MOST ADVANCED MFL TECHNOLOGY AVAILABLE

Scan Systems Corp Houston, Texas USA +011.281.219.9480

www.PitcoInc.com

DIGI-TECH™ M-Series

MFL Pipe Inspection Unit

PITCO

A DIVISION OF SCAN SYSTEMS CORP

BEST IN CLASS

OCTG MFL

TUBING AND CASING

INSPECTION SYSTEM

• Full Body Inspection

• MFL Longitudinal Inspection

• MFL Transverse Inspection

• MFL Magnetic Flux Density Wall Thickness Inspection

• Eddy Current Grade Comparator

• Better Sensitivity with Hall Elements Detector Sensor

• Fully Digitized at the Signal Detector for Reduced Noise

• Effective up to 0.625” (15.875mm) wall thickness

• Production Speeds up to 150 FPM (0.75mps)

• Fully Computerized and Controlled Systems

• Industry-leading Digi-Pro

TM

Signal Processing Electronics

• Equipment Sizes for 1 ½” (38mm) through 14” (356mm)

PRICE PERFORMANCE VALUE

UNISON has launched an all-electric tube

bender with an integrated cutter, providing

automated single-step manufacturing of

volume parts such as exhausts and tubing

or piping shapes. The new machine is

believed to be an industry first, bringing the

programmability and precision advantages

of all-servo-control to the tubular parts

manufacturing market.

The machine’s all-electric, servomotor-

controlled architecture gives comprehensive

programmability throughout the entire part

fabrication cycle. The position and forces

of the tube bending dies can be precisely

controlled, as can the movement profile and

torque applied during the ‘nick and shear’

cutting cycle, delivering accuracy and quality

of shape fabrication and end finish.

Servomotor control also ensures

that cutting positions are accurate and

repeatable from batch to batch, to within

±0.1mm (0.004"), as tubing remains under

control of a high-resolution digital motion

architecture throughout the operation.

These benefits are in addition to the low

energy consumption and quiet operation

of all-electric motion control architectures,

compared with traditional hydraulically

actuated machinery.

After a bending operation, moving the tube

to the shear tool position and making the cut

takes typically 12-15 seconds. This compares

with perhaps 60 seconds – plus the need for

skilled labour – that would be required for

handling, loading, set-up and cut-off when

the same task is performed at a separate

station. In addition to these throughput gains,

Unison’s new integrated machine means that

many manufacturers are also able to produce

multiple parts from each length of tubing.

The new machine, called the Breeze-

Blade, is capable of bending and cutting

tubing with outside diameters of up to 76mm

(3"). It comes with a multistack (multiple

on-machine tooling) facility for software-

controlled changeover between parts

batches, with the nick and shear tooling

loaded into one of the tool positions.

Cut-off is performed in two steps. The bent

tube shape is positioned automatically by the

machine’s servomotor-driven carriage, and a

circular clamp grips the tube directly adjacent

to the cutting position. The first tool strikes the

tube to create a nick that penetrates around

two thirds of the way through the tubing

wall. The shear blade then drives through

the tubing, with control over aspects such as

acceleration, speed, deceleration and torque.

Unison

– UK

Email:

enquiries@unisonltd.com

Website:

www.unisonltd.com

Integrated all-electric

tube bender and cutter

Unison has engineered a combined tube bender and

cutter with a programmable all-electric architecture