Mecanica de

RESISTANCE WELDING PRODUCTS
CMW Inc. (317) 634-8884, FAX: (317) 638-2706 E-mail: cmw@cmwinc.com

CONTACTS METALS WELDING

APPLICATION AND DATA SHEETS
CMW Copper Base Alloys ELKONITE ®, ELKON®, ANVILOY ® Materials Metric Conversions Inches to Millimeter Taper Dimensions CMW and RWMA Straight Electrode coding Holder and Electrode application sketches Multispot Pressure Equalizing HolderSet-ups Welding Bar and Rod Stock ELKONITE ® Bar Stock GCAP® Weld and Stepper Schedule Spot Welding Schedules for Low Carbon Steel Projection Welding Schedules for Low Carbon Steel Welding Schedules for Stainless Steel Welding Schedules for Galvanized Low Carbon Steel Recommended Electrode Materials Resistance Welding Electrode Maintenance Welding Electrode Evaluation Form Graph Facsimile Do’s andDon’ts for Resistance Welding Electrodes 4 5 6 7 7 28 41 48 49 51 52 53 54 55 56 57 58 59 60

IRREGULAR ELECTRODES
Crank Spade Gun 18 19 19

STUD AND NUT ELECTRODES
Chameleon/Max-Life™ Nut Electrodes 20 Chameleon/Max-Life™ Stud Electrodes 21 Self-Piloting Nut Electrodes Non Piloting Nut Electrodes Stud or Pin Electrodes

22

23

CAP ELECTRODES, GCAPS ®, AND SHANKS
Cap Electrodes GCAP®Electrodes Cap Shanks 8 9

24

Cooling Jackets for Stud and Nut Electrodes 24

10, 11

BACK-UP ELECTRODES
Swivel Head 25

STRAIGHT ELECTRODES

Dome and Pointed Nose Flat and Offset Nose

12 Large Round Head CMW ® 3 and ELKONITE ® FACED 25 Square and Rectangular Head

13

Truncated, Radius, and 30o Nose 14 Elkon® & Elkonite® Faced Nose

25

14

SOCKET OR BUTTON ELECTRODES
37BENT ELECTRODES
Single and Radius Bend Double Bend 15

“NU-TWIST”® ELECTRODES
37

16,17

2

Specifications subject to change without notice.

CMW Inc. (317) 634-8884, FAX: (317) 638-2706

E-mail: cmw@cmwinc.com

THREADED ELECTRODES
26

Dual Mounted Hydraulic “Nu-Twist” ® Assemblies 900 Series Light Universal Holders for Socket Electrodes

39

HOLDER TO ELECTRODE ADAPTERSNon Ejector Ejector Assembly Examples 27 30

42

950 Series Paddle Holders for Socket Electrodes 42

........

29,30,31,33

Universal

........... 35

LOW INERTIA HOLDERS

ELECTRODE HOLDERS
100 Series Straight Non Ejector 29 200 Series Straight Ejector 30 300 Series Premium Straight Ejector 400 Series Light Non-Ejector Offset 1100 Series Adjust-A-Pressure Low Inertia Holders 401150 Series Adjust-A-Pressure Adapters

40

31

MULTISPOT ADAPTERS FOR AIR OR HYDRAULIC PISTONS
32 1200 Series Multi-Spot Adapters 44

500 Series Heavy Duty Ejector Offset 33 600 Series Universal Holders 34 600 Series Universal Holder Components Platen Mounted Holders

CONTACTORS

Welder Contactors

44

ACCESSORIES
Cap Electrode Extractor Fork 45

35

43

Reamers, HoseConnectors, and Hose Clamps 45 Pneumatic Electrode Dresser and Cutters 46,47 Hand Electrode Dressers Force Gauge

800 Series “Nu-Twist” ® Surface and Threaded Adapters 36 Hydraulic Equalizing Adapters for 800 Series 38
ORDER BY CMW PART NUMBER ONLY

47 50

3

COPPER BASE ALLOYS
CMW Inc. (317) 634-8884, FAX: (317) 638-2706 E-mail: cmw@cmwinc.com

CONTACTS METALS WELDING

Long electrodelife is of paramount importance to the user of resistance welding equipment. Selection of the proper CMW alloy or combination of alloys will help to give improved weld strength and electrode life.

CMW electrodes are fabricated from alloys selected from the results of laboratory and practical field tests. For special problems, CMW engineers will make recommendations based on their years ofexperience.

Typical Physical and Mechanical Properties of CMW® Copper Based Alloys
CMW ALLOY CMW® 28 CMW® 3 CMW® 328 CMW® 353 CMW® 100 CMW® 73 ELKALOY® D Copper CMW® DSC R.W.M.A. Alloy Number 1.15000 2.18200 2.18150 3.18000 3.17510 4.17200 5.95300 — 20 — Hardness Rockwell 70 B 70 B 83 B 83 B 94 B 90 B 100 B 38 C 38 C 92 B 30 B 40 B 75 B Electrical Conductivity %I.A.C.S. 90 80 85 85 48 48 48 20 23...