Design changes during tool construction are a fact of life. If the change takes place after texturing or polishing, the tool builder may have to start over. Welding on high carbon steels can cause a dramatic rise in hardness in the area adjoining the welded area-called the heat-affected zone (HAZ).

If this hardness cannot be drawn back to a reasonable level (often it cannot), it is very difficult to match the texture or polish to the rest of the tool.

In early of First-rate Mold Solution Co., Ltd . horn pad mold built from P-21 modified variation NAK 55. After the textured mold had been completed, designers relocated the bugles. If we cut the cavity out of P-20, we would have had to start over.it this way,Our customers expect the highest quality and delivery from our polish and texture repair service.

The low carbon P-20 modified steels, such as PX5, are a tremendous aid in fulfilling our commitment to getting our customers back in business as quickly as possible. In most cases we can avoid the need to pre- and post-heat the tool, as well as avoid the need for diamond lapping to get the original finish. The ability of our technicians to perform on-site repairs without pre-heating saves time and money, which are both are very valuable commodities when the mold is out of production.

Our tool building industry is comfortable using P-20. We cut our teeth on it. It’s been around since the 1950s, but these are uncomfortable times. Our domestic industry is competing in a world market, but we are competing against tool builders who are using steels designed to reduce labor costs in both tool building and maintenance. Using these steels to bring manufacturing costs and leadtimes to a more competitive level will do much to allow the domestic industry to concentrate more on selling its built-in advantages-such as language, creative design, local service and quality. The playing field will begin to tilt back our way.