Influence Of Gas Options On Cut Quality; Introduction - ESAB Precision Plasmarc Installation, Operation And Maintenance Manual For Residential Installation

SECTION 4

4.3 Influence of Gas Options on Cut Quality

4.3.1 Introduction

NOTICE
4.3.2 Aluminum
Material Thickness: All thickness' between .062 " to .625 " (1,6 mm to 15,9 mm)
Material Thickness: Material Thickness: Material Thickness:
Cut Qualities: Cut Qualities:
Cut Qualities: Cut Qualities:
Plasma Gas: Nitrogen Plasma Gas: Plasma Gas: Plasma Gas:
Shield Gas: Nitrogen/Methane Shield Gas: Shield Gas: Shield Gas:
Discussion: Discussion:
Discussion: Discussion:
All gases are not suitable for all situations. Certain
gases assist in cutting specific materials and
thickness. The following explains why certain gases
are selected and their influence on the finished part.
Other influences such as arc voltage and gas
flow/pressure are covered in the Process Data.
Refer to Cutting Process Data in this section for
recommended flow/pressure settings.
Smooth cut face
•
Virtually no dross
•
Shield mixture is very important. Between 2 and 3 parts nitrogen, to 1
part methane ratio is desired. Incorrect ratio results in heavy dross.
4-9
OPERATION