CNC Material Guide: Metals, Plastics & Tolerance Selection https://rcjmzg.com/blog/material-guide/ Wed, 05 Aug 2026 09:26:23 +0000 en-US hourly 1 https://wordpress.org/?v=7.1.3 https://rcjmzg.com/wp-content/uploads/2025/12/favicon-150x150.png CNC Material Guide: Metals, Plastics & Tolerance Selection https://rcjmzg.com/blog/material-guide/ 32 32 Aluminum 6061 vs 7075: Strength, Cost, and Machinability https://rcjmzg.com/aluminum-6061-vs-7075-strength-cost-machinability/ Wed, 15 Jul 2026 07:46:29 +0000 https://rcjmzg.com/aluminum-6061-vs-7075-strength-cost-machinability/ 6061 or 7075 — which aluminum actually fits your part? We break down the real differences in strength, machinability, and cost so you stop overpaying or under-engineering your next CNC project.

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Material Guide

Material choice affects machinability, lead time and cost. These guides compare commonly machined metals and plastics, including aluminum, stainless steel, brass, titanium, PEEK, POM and nylon, while explaining material properties, finish quality and practical tolerance selection.

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]]> Stainless Steel 303 vs 304 vs 316: Choosing the Right Grade https://rcjmzg.com/stainless-steel-303-vs-304-vs-316-choosing-the-right-grade/ Wed, 20 May 2026 07:48:44 +0000 https://rcjmzg.com/stainless-steel-303-vs-304-vs-316-choosing-the-right-grade/ 303, 304, and 316 stainless steel look identical on paper but behave very differently under a cutting tool and in the field. Here's how to pick the right grade without overpaying for corrosion resistance you don't need — or underpaying for protection you do.

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Material Guide

Material choice affects machinability, lead time and cost. These guides compare commonly machined metals and plastics, including aluminum, stainless steel, brass, titanium, PEEK, POM and nylon, while explaining material properties, finish quality and practical tolerance selection.

Request a Quote

The post Stainless Steel 303 vs 304 vs 316: Choosing the Right Grade appeared first on RUOCHEN CNC.

]]> Machining PEEK: What Goes Wrong (and How to Avoid It) https://rcjmzg.com/machining-peek-what-goes-wrong-and-how-to-avoid-it/ Wed, 15 Apr 2026 07:44:31 +0000 https://rcjmzg.com/machining-peek-what-goes-wrong-and-how-to-avoid-it/ PEEK looks easy to machine on paper — until it warps, chips, or melts under the tool. Here's what actually goes wrong when shops cut PEEK, and the practical fixes that separate scrap piles from clean parts.

The post Machining PEEK: What Goes Wrong (and How to Avoid It) appeared first on RUOCHEN CNC.

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Material Guide

Material choice affects machinability, lead time and cost. These guides compare commonly machined metals and plastics, including aluminum, stainless steel, brass, titanium, PEEK, POM and nylon, while explaining material properties, finish quality and practical tolerance selection.

Request a Quote

The post Machining PEEK: What Goes Wrong (and How to Avoid It) appeared first on RUOCHEN CNC.

]]> Understanding Tolerances: How Precise Does Your Part Really Need to Be? https://rcjmzg.com/understanding-tolerances-how-precise-does-your-part-really-need-to-be/ Wed, 10 Dec 2025 06:56:38 +0000 https://rcjmzg.com/?p=407 Understanding machining tolerances is essential for controlling cost and ensuring your parts function as intended. This guide explains how precision affects pricing, what tolerance grades mean, and how to choose the right level of accuracy for your application.

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Material Guide

Material choice affects machinability, lead time and cost. These guides compare commonly machined metals and plastics, including aluminum, stainless steel, brass, titanium, PEEK, POM and nylon, while explaining material properties, finish quality and practical tolerance selection.

Request a Quote

The post Understanding Tolerances: How Precise Does Your Part Really Need to Be? appeared first on RUOCHEN CNC.

]]> The Best Plastics for CNC Machining: Strength, Stability, and Cost https://rcjmzg.com/the-best-plastics-for-cnc-machining-strength-stability-and-cost/ Wed, 10 Dec 2025 06:38:51 +0000 https://rcjmzg.com/?p=396 This guide breaks down the best plastics for CNC machining, comparing strength, machinability, heat resistance, and cost. It helps engineers and buyers choose the right material based on performance needs, production volume, and operating environment.

The post The Best Plastics for CNC Machining: Strength, Stability, and Cost appeared first on RUOCHEN CNC.

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Material Guide

Material choice affects machinability, lead time and cost. These guides compare commonly machined metals and plastics, including aluminum, stainless steel, brass, titanium, PEEK, POM and nylon, while explaining material properties, finish quality and practical tolerance selection.

Request a Quote

The post The Best Plastics for CNC Machining: Strength, Stability, and Cost appeared first on RUOCHEN CNC.

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