Spot Welding Gun Force Calculation

Spot welding is the most important method in automotive manufacturing where parts of the car body have to be joined. Force and adapted to spot weld in the required areas with a limited deflection.

Faq On Resistance Spot Welding Parentnashik Excellence In Resistance Welding Consumables Weldparts

1 where E.

Spot welding gun force calculation. If a spot welder has adjustable length tongs a pressure gauge should be used to. Spot welding basic parameters setting - basic calculations equations. XCGun Prototype Ratings Clamping Force 8kN 1800lbf Air Supply 6bar 90psi Throat Depth 500mm 20 Opening width 265mm 105 Power Balance Stroke 30mm 12 Welding Current DC 20kA Power Supply Inverter 10kHz Weight wo secondary circuit 145kg 320lb.

Spot Welding Parameters Basic Calculation 0241 w 1 where E. Figure 8 Spot weld in the reality and in the simulation The discretization of the spot weld Figure 9 can be modeled by a simple solid element hexahedron or by any number of solid elements building a spot weld assembly cluster. Panel Contact Resistance Ω JvSL 3 where Jv.

A small change of one. Spot welding according to Joules law is expressed by the Equation. Energy J Calculation for AC spot welding P.

Surface contact mm2 L. Welding Current A R. The welders were instrumented such that the energy consumptions at both the primary and secondary side of.

Every welding gun that we develop and fabricate is unique. Temporary extra stroke X-GUN VERSION 1 L mm 220 300 400 500 600 L1 mm 155 235 335 435 535 1 F daN 230 170 135 110 95. We have been developing and expanding the expertise needed to accomplish that during many years.

H I2Rt where H Heat is generated in joules I Current in amperes R Resistance in ohms t Time to current flow in seconds Resistance Spot Welding Parameters The spot welding process parameters have their own importance. Capacitor energy Spot welding apparatus Numerical method Welding Discharge time. This way of action allows a fast development of the pro-ject in engineering and detail stages after the welding gun concept was approved by the customer.

Automatic Calculation Steps in Simufactwelding The actual process will be calculated in six steps depending on the robot geometries etc. Typically a body shop welds steel between 16 gauge and 24 gauge. Energy J Calculation for AC spot welding P.

On our guns 5kn is enough to force the cap tips all the way against the electrode body. Weld time sec 0241𝐼2 𝑅𝑡w 2 where I. Surface contact mm2 L.

For a limited number of weld points these six steps will be performed to simulate the spot weld process and to create a spot weld joint. Spot Welding Parameters Basic Calculation 𝐸 0241𝑃𝑡w. Total plate thickness combination mm 2 Jvπ 4 L 4 where d.

Resistance spot welding RSW processes. MATHEMATICAL MODELLING SPOT WELDING SYSTEM COMPARISON Spot Welding Parameters Basic Calculation 𝐸 0241𝑃𝑡w 1 where E. Power W tw.

The weld gun components that insures the welding force are validated at this early stage by FEA. Energy J Calculation for AC spot welding P. The lower electrode is move to the reference point and can get.

2 where I. Melting energy Jmm3 S. Melting energy Jmm3 S.

Power W tw. 18 rows One general criterion of resistance spot-welding is that the weld shall have a. For reasons of quality assurance the welding guns.

Two identical weld guns were used one with a single-phase AC and the other with a median-frequency DC MFDC weld control. Specifically adapted to the demands of your production challenges and manufactured by us at the highest level of quality. 1 Calculation of the energy of capacitors 11 Formulation of the problem An adjustable spot welding apparatus 1 developed by a team of authors belongs to the type of semiautomatic devices and is implemented in a capacitor method without.

Robot welding guns for single-sided resistance spot welding. Electrode force at 600 kPa 6bar 2. Welding Current A R.

The material we weld is 1 to 3mm total thickness and our typical clamp force for spot welding is 1 to 3 kn. Force Measurements on Welding Guns. Dont ask how I know this.

The depth of depression on the sheet surfaces caused by welding electrodes should never exceed 25 percent of the sheet metal thickness. Spot weld fails either by pull-out failure PF mode or interfacial failure IF mode. We use a TUFFALOY digital force gauge and an ENTRON weld force tester to verify our weld gun settings.

Arm set weight 3. Calculation the true thickness of the spot weld is considered. C-GUN X-GUN Both straight version 1 and angled version 2 arms are available in a large variety and different lengths from 200 up to 600 mm.

The spot weld strength is governed by the welding parameters sheet metal thicknesses and the loading conditions. The quality of the welding spot depends on the current the welding time and the force of the welding gun which presses the two parts together. Power W tw.

Weld time sec 0241𝐼2 𝑅𝑡w. Welding Current A R. One-shear joint loaded with shear Shear loading of a point Tear loading of a point along the cylindrical surface Comparative stress Meaning of used variables F acting force N lb d diameter of spot weld mm in i number of welds - s plate thickness mm in α conversion factor of weld joint - Double-shear joint loaded with shear Shear loading of a point Tear.

Weld time sec 0241 2 w 2 where I. Panel Contact Resistance Ω JvSL 3 where Jv.

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