Shear connector / Shear stud with Ceramic Ferrule
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Shear connector / Shear stud with Ceramic Ferrule Foundation Bolts/ANCHOR BOLTS  as per Drawing
Shear Bolts / Tension Control Bolts ASTM FASTENERS
Stud Welding Machine & Accessories High Strength Friction Grip Bolts 8.8S, 10.9S
DTI (DIRECT TENSION INDICATOR)WASHERS Stainless Steel SS304, 316, 316L Fasteners
HILL SIDE WASHERS High Tensile  FASTENERS 8.8,10.9,12.9
SELF DRILLING SCREWS MILD STEEL FASTENERS

Shear connector type SD (EN ISO 13918) in mm

D1-0.4 10 13 16 19 22
D5+0.3 19 25 32 32 35
D3+0.3 13 17 21 23 29
h3+0.5 7 8 8 10 10
h4 2.5 3 4.5 6 6
L1 + 1.5 40-105 40-160 40-200 40-250 80-250
Burn off * 3mm 3mm 4mm 5mm 5mm
Ferrule UF10 UF13 UF16 UF19 UF22
Material available: * Burn off lengths shown
S235J2G3+C450 are for weld to bare steel.
 
TENSILE YIELD TENSILE ELONGATION
BSEN STREBGTH STRENGTH MIN MIN
10002-1:2001 MIN      
SPECIFICATION 350 450 15%
BS EN ISO 13918
SPECIFICATION 385 495 15%
BS5400 - 6
SPECIFICATION 385 495 18%
BS5400 - 5
  1. The arc stud is loaded into the stud gun chuck.
  2. A ferrule is placed into the ferrule grip.
  3. The arc stud is positioned against the work surface to complete an electrical circuit.
  4. The operator initiates the weld cycle by pulling the gun trigger.
  5. The gun lifts the stud up from the work, drawing a pilot arc.
  6. The pilot arc establishes a path for the weld current which comes on after the stud is lifted.
  7. The stud remains lifted for the duration set on the controller. During this time the weld current is melting both the stud and the parent metal.
  8. When the time set on the controller has elapsed, the gun plunges the stud into the molten pool of parent material and the weld is completed.
  9. The ferrule is broken away and discarded.

Two concepts which require further discussion are “Plunge” and “Lift”.

What is Plunge?  The amount of stud which protrudes beyond the ferrule when the stud gun is in its normal state. This represents the portion of the stud to be used in forming the weld fillet. Short plunge may cause incomplete fillet formation while too much plunge may cause excessive splatter which may also leave incomplete fillets or uneven fillet formation. The amount of plunge also determines the degree of spring pressure plunging the stud. Therefore, it is logical that too much plunge will “splatter” the weld, while too little will result in an incomplete fillet.

How Much Plunge? Typically the amount of plunge should be set at 1/8” excluding the flux ball. Vertical wall stud welding will typically require additional plunge for complete fillet formation (3/16”). See setting plunge in this booklet.

What is Lift? The Lifting motion is essential to the stud weld process since it creates a gap which the current must bridge. This air-gap increases the electrical circuit resistance and generates the heat necessary to melt the stud and parent material for the weld. If no gap exists there would be a direct short to the base material and sufficient heat would not develop.
How Much Lift? The lift, once set, should not usually require changing until the gun is disassembled and cleaned. Typical lift requirements are 1/16” to 3/32”.

STANDARD SHEARSTUD RANGE IN STOCK BS EN ISO 13918 AND BS 5400

13mm Diameter 50mm-200mm length
16mm Diameter 50mm-200mm length
19mm Diameter 50mm-450mm length
22mm Diameter 50mm-450mm length
25mm Diameter 50mm-450mm length
Drawings / Specifications We can manufacture any type of typical Fasteners as per your drawing and specifications