🔩 Shop Math

Automotive, Welding & Machine Shop Calculations

GENO says: Welcome to Shop Math! Whether you're turning wrenches, running a welder, or operating a lathe—math is your constant companion. Automotive techs calculate compression ratios. Welders figure heat input. Machinists work in thousandths. Master these skills and you'll command respect in any shop.

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Automotive

Torque, displacement, gear ratios, fuel

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Welding

Heat input, filler metal, joint calculations

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Machining

RPM, feed rates, tolerances, threads

🔩 Shop Math Essentials

• Automotive: 1 liter ≈ 61 cubic inches. Torque × RPM ÷ 5252 = Horsepower

• Welding: Amps × Volts × 60 ÷ (Travel speed × 1000) = Heat input (kJ/in)

• Machining: RPM = (CS × 4) ÷ Diameter. Tolerance = ± acceptable variation

• All shops: Thousandths matter. 0.001" can mean pass or fail.

Question: 1/7

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Automotive

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