So there are be some not meeting & mdash; I & rsquo; m only writing from my personal experience.
Should never be the main factor. As I often say, it & rsquo; s cheaper but cores more.
; T Put Extra Focus on the TOOL Design for Cooling. If you go with a state steel that will not be hardernedned, your count will be from youl.
Price Should never be the main factor. As I often say, it & rsquo; s cheaper but counts more.
Each option.
consider.
On the Other Hand, Aluminum Can Be An Excellent Choice for Lower-Volume Tools to Reduce Cycle Times. But from a Maintenance ViewPoint, aluminum is not my friend.
Very Soft and Requires Extra Attention in the design to make sure it is raising enough.
Surfaces or components.
The Old-SCHOOL Rule of Needing 10 Points of RC Spread for Components and Cavities is not a fact when higher on the rc scale.
The Most Common, MIDDLE-OF-The-Road Tool Steel is P-20 or Similar, Which Has 28-30 RC Hardness. This Steel Also Comes in A High-Hard Version, and in Lens Grade WhenenEROSION with a coating or Surface Hardening. This has been drawbacks, with which I am very familiar.
Treating Process, Shrinking or Expanding Less than H-13 or Stainless Steel.
In Most Cases, Cavities Are Hardened to 50-52 RC. S-7 Can Also Be Used for Slides or Lifter and Hardned to 54-56 RC. They Have Excerties Working Against The S-7 CAVINST THE S-7 CAVINST THE S-Cav.I & rsquo; Ve Seen Tools Set Up Like This Running Every Day All Week with Intricate Lifers and NEVER HAVE An Issue with Wear or Galling.
RC and Thinking they are good to go. Wrong. All you need to do is have the thatm nitrided after and timed and you & rsquo; re all set for wear and tear.
Stainless Steel is Commonly used not only for PVC but inmedical toLing to provide highly polished cavities. The high end for hardness on stainness Steel is 50-52 RC.
And Leave a Radius on all internal corners where possible.
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