Dr. Livingstone, I Presume WELDWISE 2400 User Manual
Page 5
0427-INS-400 Rev. D
iii
Table of Contents
OVERVIEW
OF
RESISTANCE
WELDING
1
INTRODUCTION
1-1
VARIABLES
IN
THE
WELDING
PROCESS
1-2
THE WELD CYCLE
1-2
CRITICAL FACTORS IN WELDING
1-3
CURRENT
1-3
VOLTAGE
1-3
POWER
1-4
RESISTANCE
1-4
ELECTRODES
1-4
SURFACE CONTACT
1-6
CURRENT DENSITY
1-6
OHM'S
LAW
AND
JOULE'S
LAWS
1-7
IDENTIFYING
AND
CORRECTING
WELD
PROBLEMS
1-8
RECOMMENDATIONS FOR PRODUCING
QUALITY
WELDS
1-9
AVOID THESE POTENTIAL SOURCES OF
WELD
PROBLEMS
1-10
INTRODUCTION TO RESISTANCE WELD MONITORING
2
INTRODUCTION
2-1
WHY MONITOR?
2-1
WELD
LOBES
AND
THE
WELD
PROCESS
2-2
STYLES
OF
MONITORING
2-2
BEFORE
&
AFTER
MONITORING
2-2
MASS MONITORING
2-3
DYNAMIC MONITORING
2-3
EFFECTS
OF
DIFFERENT
FACTORS
2-4
HOW MONITORS WORK
2-5
MORE BENEFITS
2-5
TOLERANCING
AND
MONITORING
3
INTRODUCTION
3-1
LIVINGSTON
WELDWISE
MONITOR
3-1
SIGNATURES & MASTERS
3-1
TOLERANCES
3-2
MEASURED PARAMETERS
3-3
SEGMENTS
3-3
DATA
COLLECTION
3-4