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What is SFM? A Complete Guide to Surface Feet per Minute in Machining
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What Is SFM? A Complete Guide To Surface Feet Per Minute In Machining
SFM, meaning Surface Feet per Minute in CNC machining, measures how fast a cutting tool moves across a workpiece. It is expressed in feet per minute. SFM combines the tool or workpiece diameter with the spindle speed (RPM). A larger diameter or higher RPM results in a higher SFM. Machinists use surface feet per minute to determine the best cutting speed for a material. Different materials have recommended SFM values for optimal performance. For example, 303 annealed stainless steel has an...
Machining Allowance Explained: Its Calculation And Matters
Machining allowance is a fundamental concept in manufacturing. It is a common engineering practice in CNC precision machining, ensuring dimensional accuracy, surface quality, and the production of reliable and functional components for a range of industries, including aerospace, defense, and medical. This article attempts to answer the question: what is machining allowance? We will take a deep dive into the concept of machining allowance and discuss why machinists leave machining allowanc...
Press Fit Tolerance: Defination, Practices, And Calculation
The manufacturing industry is highly precision-centric, where even the slightest of margins can create huge differences in product quality, cost, and utility. This article discusses the topic of press fitting, where a few micrometers of deviation dictates the criterion for part failure. So, what is press fit and, the factors influencing press fit tolerancing, and present an example of a press fit calculator. We will also share some key tips to keep in mind while designing components for p...
Cost Of CNC Machining: What Affects & How to Save It?
CNC machining is a technique used to make precision parts and replicate amazing designs. There are a lot of advantages of CNC machining, such as increasing the speed of parts production. It also reduces human errors during manufacturing as it is being controlled by the computer. However, many people do not seem to understand the rationale behind its cost. The machine and material you use can affect the price. Today, many customers still struggle with CNC machining cost calculation. With t...
