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Another Custom CNC Sample Project Successfully Completed

Leave a Comment / Company News /

Date: July 2026 At WOLHUI, we are pleased to announce the successful completion of a new batch of custom-machined sample parts for one of our international customers. These parts were manufactured according to the customer’s engineering drawings and specifications. The project included multiple components with different dimensions and machining features, requiring consistent dimensional accuracy and […]

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CNC Machining Dimension Out of Tolerance? A QE Engineer‘s Guide to Root Cause Control and Prevention

Leave a Comment / Quality Control /

Years of frontline experience distilled — dimension deviation is hands down the most frequent quality issue on any machining floor. You know the scene: First article passes inspection perfectly. Then mid-run, dimensions start drifting. Day shift runs smooth. Night shift scraps a whole batch. Most people blame the operator. But in reality, the root cause

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Machining Equipment, Process Capabilities & Manufacturing Knowledge

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Understanding machining processes, equipment capabilities, and manufacturing constraints is essential for every mechanical design engineer. This guide covers the most common machining equipment, typical achievable tolerances, and practical process knowledge that directly impacts part design and cost. 1.1 Conventional Lathe A lathe is used primarily for machining shafts, discs, sleeves, and other rotationally symmetrical workpieces.

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NC Machined Parts for Diverse Industrial Applications

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Modern industries demand precision, reliability, and flexibility. From industrial automation to food processing equipment, custom CNC machined components play a critical role in ensuring machinery operates efficiently and consistently. At WOLHUI, we manufacture custom metal and plastic components for a wide range of industries. Whether you need prototype parts, low-volume production, or repeat manufacturing, our

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Surface Finishing Processes: A Practical Guide for Mechanical Design

Leave a Comment / Surface Finishing /

Surface finishing is a critical step in manufacturing — it enhances corrosion resistance, wear resistance, aesthetics, and functionality. This guide covers the most common surface treatment processes used in industrial and mechanical applications, along with their typical uses and limitations. Electroplating deposits a thin layer of metal onto the surface of a workpiece to improve

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Metal & Non-Metal Materials: A Practical Guide for Mechanical Design

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A solid understanding of material properties is essential for any mechanical engineer or designer. This guide covers commonly used metals and non-metals in industrial manufacturing — from structural steel to engineering plastics — with practical insights on their applications, surface treatments, and limitations. Metal Materials The most widely used structural steel in mechanical design. Cost:

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Mechanical Design: The 12 Ways a Part Can “Die” – Reverse-Engineering Mechanical Property Specs

Leave a Comment / Design & Engineering /

· Cause of Death #1: Clean Break (Insufficient Tensile Strength)· Crime Scene: Bolt snapped cleanly; shaft fractured at the root. The most dramatic end.· Design Lesson: You sized it for bulk, but forgot to calculate tensile stress. Strength is the baseline for survival – never let your guard down.· Cause of Death #2: Bent and

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CNC Machining Tolerances Explained

Leave a Comment / CNC Machining /

Tolerance is one of the most important considerations in CNC machining. It determines how much a finished part is allowed to vary from its specified dimensions while still meeting design requirements. Choosing the right tolerance is essential for achieving reliable assembly, maintaining product performance, and controlling manufacturing costs. Specifying tolerances that are tighter than necessary

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What Is CNC Machining? A Complete Beginner’s Guide

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CNC machining (Computer Numerical Control machining) is a manufacturing process in which computer-controlled machines remove material from a solid block to create precise and complex parts. The process follows digital instructions generated from CAD (Computer-Aided Design) models, allowing manufacturers to produce components with high accuracy and repeatability. Today, CNC machining is one of the most

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