Technical content for boilermaking
Layouts, welding symbols, productivity and career — straight from the people who live the shop floor and the field.
6 articles on the blog
Sphere Pattern Development: Gore Method, Step by Step
Sphere pattern development with gores: width of each gore, axis of π × R, step-by-step method and a measurement table.
Frustum of a Pyramid Pattern: Square Hopper Layout, Step by Step
Frustum of a pyramid pattern for a rectangular or square hopper: true lengths, step-by-step method and a measurement table.
Off-Center Fishmouth Layout: 90° Branch With Offset Axes
An off-center fishmouth, with the branch axis offset from the main pipe: depth formula with the offset, parallel-line development and a measurement table.
Fishmouth Joint Layout for Different Pipe Diameters: 90° Branch
A fishmouth for a smaller branch on a larger pipe: depth formula, parallel-line development and a measurement table.
Blank Length for Rolling a Cylinder (Shell Course): Step by Step
Mean diameter, neutral axis, a worked example and a blank length table for rolling a cylinder from 12 mm plate.
45 Degree Lateral Layout: Step-by-Step Fishmouth Template
Pattern for the fishmouth cut of a 45 degree lateral between pipes of the same diameter, with a measurement table for 100 mm pipe.