News
Mold Assembly and Fitting: Flatness, Parallelism, Lapping & Inspection — What Drives Repeatable Molding
Even perfectly machined mold parts may fail in production if stack-up, contact surfaces, and guiding are not fitted and inspected correctly. Here is a practical checklist to achieve stable part repeatability with minimal handwork.
15.04.2026
CNC Milling of Mold Cavities: Roughing → Semi-Finishing → Finishing, HSM Toolpaths, and Surface Control
How to choose toolpaths, step-over/stock allowance, and tooling for tool steels to achieve stable geometry and minimize hand finishing.
07.04.2026
EDM Electrodes: How to Make Them Right (Graphite/Copper Milling), Wear Compensation and Common Mistakes
A practical bridge between CNC milling and sinker EDM: how to plan geometry, offsets, and electrode sets so the cavity size matches and you avoid re-burns and rework.
30.03.2026
Machining Hardened Mold Components: Hard Milling vs EDM vs Grinding — How to Choose Without Chipping or Geometry Drift
A practical decision algorithm based on geometry complexity, material condition, surface requirements, and lead time — with real-world risks of hardened tooling in mind.
24.03.2026
Turned Mold Components: Guide Pins, Bushings, Sprue Bushings, Core Pins — Which Tolerances Are Critical and Why
What is typically made on CNC lathes, which fits define mold life, where coaxiality/surface finish matters, and why saving on accuracy is risky.
16.03.2026
Lathe Chuck Jaw Types: Straight, Reverse, and Combination — How to Choose for Your Part
Jaw type affects clamping accuracy, repeatability, safety, and chuck life. Here is a practical way to select straight, reverse, or combination jaws for your workpiece.
11.03.2026
Runout and Clamping Repeatability: Grinding/Lapping Chuck Jaws and Common Root Causes
Runout is not always a spindle problem. Very often it comes from jaw wear, seating errors, or inconsistent clamping. Here is how jaw grinding works, when it helps, and what to check first.
05.03.2026
Custom Chuck Jaws: Specification & Measurement Checklist for a Perfect Fit
To make sure new jaws fit your chuck without rework and deliver stable clamping, the technical brief matters. Below is a practical checklist of data and measurements that saves time, cost, and downtime.
25.02.2026
Chuck Jaw Materials and Heat Treatment: Wear Resistance Without Cracks or Distortion
The right steel and heat-treatment route define jaw life, grip stability, and repeatable accuracy. Here is a practical guide to choosing materials and hardening methods for lathe chuck jaws.
24.02.2026
Mold Venting and Gas Traps: How to Prevent Burn Marks and Short Shots
Air must leave the cavity as plastic enters — practical venting rules, typical gas-trap zones, and how Promservice improves mold design to stabilize injection molding.
29.01.2026
Mold Polishing and Textures (SPI/VDI): How to Achieve the Required Surface
Surface finish is not only about appearance — it affects demolding, wear, and repeatability. Learn how to specify SPI/VDI correctly and how Promservice delivers the finish you need.
15.01.2026
Mold Cooling: How to Reduce Cycle Time and Prevent Warpage
Cooling design and maintenance determine productivity and dimensional stability — practical recommendations and how Promservice optimizes cooling in injection molds.
07.01.2026