Welding Wear Protection Parts – Wear Strips, Wear Plates, Wear Buttons and Chocky Bars
The instructions below are universal guidelines for:
Welding Chocky Bars
Welding Wear Strips,
Welding Wear Plates and
Welding Wear Buttons
These wear protection parts work to protect the edges of buckets that make contact with the ground while digging. By undergoing proper preperation and welding, you will prolong the life of your bucket significantly.
Prior to welding chocky bars, read instructions on cutting and forming first.
Ensure the backing plate and matting metal surface is clean and flat.
Welding rod selection: Low hydrogen weld rods or gas covered cored wire is recommended. Gas shielded solid MIG wire Ø1,2mm max Flux cored wire Ø1,6mm max to ASTM/AWS A5.18 classification ER705-6 Low hyrodgen electrode Ø3,25mm max t ASTM/AWS A5.1 classification. E7016-1H8 or E7018-1H4
Do not preheat the chocky bars
Clamp and tack weld the part in to position
Stitch weld, laying 50mm maximum length on each run. Alternate ends or sides to minimise heat input.
Do not deposit weld within 2mm from joint between part and steel backing plate as shown in Fig 6.
Caution: Temperatures must not exceed 200˚C. Excessive heat input may cause cracking and de-lamination. Use thermal crayons to monitor temperature. Do not weld continuously. This may cause warping, de-lamination and cracking. If a complete peripheral weld is required, use stitch weld procedure as per step 5.