Our in house tool design and manufacturing facility enable us to react quickly to your needs for new and modification of existing tooling.
Laser cut tooling boards, cut directly from your dxf or dwg files can be produced very accurately and very quickly.
Gasket are mainly cut using forme type tooling, which uses a special hardened blade set with a plywood base. The blade types are as follows :-
Long Centre bevel
Long Side bevel
Steel Rule Dies
A steel rule die consists of a hardwood base with sharpened steel blades, or rule inserted and connected in a pattern. Different techniques of assembling the punches, blades, ejection and other die components may be used to accommodate the various characteristics required for each part. Designs which take into consideration the strengths and weaknesses of this die system produce failure free parts economically.
Steal rule serves two functions; to cut material completely through or to score the material for folding. Centre and side bevel rule is used for full or partial cutting. Creasing rule is used to provide a score line without cutting material. The perforating rule is used for “perf” scoring, which is preferred in certain applications. Die construction details are usually specified by the die maker and the part fabricator. Multiple cavity dies are available for higher volume production.
1. Hardwood Base
2. Rubber Ejection strip
3. Radius Corner
5. Lower Rule
6. Steel Rule
Design for Die Cutting
Die cut parts have four basic elements: blanks, scores, holes and tabs. These features can usually be formed simultaneously.
Optimal part design for die cutting involves a balance between specific features and manufacturing economies.
Design parameters take into consideration the following:
Blanks are formed by a full depth rule cut which separates the part (blank) from the remaining stock.
1. Avoid sharp interval/external corners which promote cracking or splitting of material.
2. Round external corners increase die strength and service life. Additional benefits include faster production, prevention of cracks, corner splits and burrs.
3. Minimum radius should be 0.031" for material less than 0.031"thick.
Scores are formed by cutting or creasing the blank. This establishes a line along which the part can be easily and accurately folded.