Sheet metal bending explained: press brake methods, bend allowance, minimum flange rules, springback, tolerance tables and 10 design rules.

How CNC machining cost is built up: machine rates, material, setup, finishing and inspection, with a quantity cost curve and 12 ways to cut cost.

Compare MIG, TIG, stick, flux-cored, resistance, laser and robotic welding by material, thickness, speed, distortion and cost, with a decision matrix.

Every GD&T symbol per ASME Y14.5-2018 with what it controls, datums, MMC/LMC modifiers, bonus tolerance and worked inspection examples.

6061-T6 vs 7075-T6 compared on strength, fatigue, corrosion, anodizing, weldability, machinability and cost, with a selection checklist.

Brass vs copper compared: composition, conductivity, strength, machinability, corrosion, cost and which grades to specify for CNC parts.

Anodizing aluminum explained: Type I, II and III processes, thickness ranges, hardness, dyeing and sealing, growth allowances and drawing callouts.

Complete sheet metal gauge chart for steel, galvanized, stainless and aluminum with inches, mm and weight per square foot, plus how to specify thickness.

Welding symbol chart with every AWS A2.4 and ISO 2553 symbol, size, length, pitch and all-around rules, plus worked examples for reading a print.