Chapter 6: Machine Shop Estimation – Milling Operations
Abstract : Machine shop estimation for milling operations involves calculating material costs, machining time, and other expenses to determine the overall cost of a project . This includes factors like cutting speed, feed rate, depth of cut, and tool life. Here's a breakdown of key aspects: 1. Material Cost: Calculate the volume: Determine the volume of the raw material needed based on the part's dimensions. Determine material cost per unit: Obtain the cost per unit (e.g., per pound, per cubic inch) of the specific material from your supplier. Calculate total material cost: Multiply the material volume by the cost per unit to find the total material cost. Factor in scrap: Account for material waste during machining, adding a percentage to the material cost to cover scrap. 2. Machining Time: Cutting Speed (V): The distance traveled by the tool along the workpiece in one minute. Feed Rate (F): The distance traveled by the tool along ...