Marigold Blog

Lower Ra ≠ Better Corrosion Resistance: The Truth About 316L Passivation
Lower Ra ≠ Better Corrosion Resistance: The Truth About 316L PassivationFor design, machining and quality engineers working with medical and industrial 316L stainless steel parts, it is a common default assumption: the lower the surface roughness (Ra), the better the corrosion resistance after passivation. Many drawings
Created on 06.16
CNC Machining Difficulty & Cost Comparison: Aluminum vs Stainless Steel vs Titanium vs PEEK
CNC Machining Difficulty & Cost Comparison: Aluminum vs Stainless Steel vs Titanium vs PEEKMaterial selection is one of the most critical decisions in CNC machining projects. The right material balances performance requirements, production cost, and lead time, while the wrong choice can lead to excessive tool wear, dimensional instability,
Created on 06.08
Why Do Medical 316L Stainless Steel Parts Leave Water Stains After Passivation
Why Do Medical 316L Stainless Steel Parts Leave Water Stains After PassivationPassivation is a mandatory and critical post-treatment process for medical-grade 316L stainless steel parts. Compliant with ASTM A967 and ISO 13485 medical manufacturing standards, citric acid passivation removes free iron and surface contaminants, r
Created on 06.01
CAD Matches Perfectly, But CNC Parts Fail Assembly? Hidden GD&T Tolerance Loophole
CAD Matches Perfectly, But CNC Parts Fail Assembly? Hidden GD&T Tolerance LoopholeMost mechanical engineers and quality managers encounter a confusing, costly issue in precision CNC machining: your CAD models and 2D engineering drawings fully comply with ASME Y14.5 GD&T standards, and incoming parts pass all routine dimensional in
Created on 05.25
High-Precision & Anti-Fatigue Machining for Robot Components: Meet Long-Term Stable Operation Requirements
High-Precision & Anti-Fatigue Machining for Robot Components: Meet Long-Term Stable Operation RequirementsRobot components (robot arms, reducers, grippers, sensor brackets) have extremely strict requirements for precision and anti-fatigue performance: high precision ensures smooth assembly and accurate operation of robots, and anti-fatigue performance en
Created on 05.21
Balancing Fast Sampling & Mass Production Lead Time for Custom Robot OEM Manufacturing
Balancing Fast Sampling & Mass Production Lead Time for Custom Robot OEM ManufacturingFor robot OEM manufacturers, fast sampling and stable mass production are two core demands: fast sampling (1~7 days) is required to accelerate product R&D and robot manufacturer verification progress, while stable mass production (short lead time)
Created on 05.21
Robot-Grade Material Selection: Wear Resistance, Load-Bearing & ISO 10218 Compliance Challenges
Robot-Grade Material Selection: Wear Resistance, Load-Bearing & ISO 10218 Compliance ChallengesMaterial selection is the foundation of robot manufacturing. Robot parts (robot arm components, grippers, reducers, sensor brackets) must meet three core requirements: wear resistance (adapt to frequent movement and friction), load-bearing (withstand
Created on 05.21
From Robot Prototype to Low‑Volume Mass Production: Process Selection (3D Printing / Vacuum Casting / CNC Machining)
From Robot Prototype to Low‑Volume Mass Production: Process Selection (3D Printing / Vacuum Casting / CNC Machining)The transition from robot prototype (robot arm prototypes, gripper shells, sensor brackets) to low-volume mass production (50~1500 pieces) is a key link for robot OEM manufacturers. The choice of processing process directly determines product quality
Created on 05.21
How to Achieve Stable Tolerance & Batch Consistency for Robot Precision Parts Under ISO 9001
How to Achieve Stable Tolerance & Batch Consistency for Robot Precision Parts Under ISO 9001For robot OEM manufacturers, precision parts (robot arm components, reducer parts, sensor brackets, gripper components) must meet strict tolerance requirements (usually ±0.005~±0.02mm) and batch consistency under the ISO 9001 and ISO 10218 (robot saf
Created on 05.21
Balancing Fast Sampling & Mass Production Lead Time for Custom Consumer Electronics OEM Manufacturing
Balancing Fast Sampling & Mass Production Lead Time for Custom Consumer Electronics OEM ManufacturingFor consumer electronics OEM manufacturers, fast sampling and stable mass production are two core demands: fast sampling (1~5 days) is required to accelerate product R&D and brand customer verification progress, while stable mass production (shor
Created on 05.21
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