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SLITTING

 

Slitting is a process of cutting larger width coils into narrower width coils with repetitive accuracy at a high speed. The process begins with the fitting of large steel coils onto an uncoiler drum whereby it is uncoiled and fed through a leveller to be flattened. Subsequently, the sheets are fed through a slitter to slit the sheets into strips of specific width.

After slitting, the strips are relayed through tension pads or synchro-wind rolls to provide tension prior to the recoiling process. The tensed strips are then recoiled using a recoiler to form slitted coils.

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STAMPING

 

Stamping at Pearl Engineering Co. includes a variety of sheet-metal forming manufacturing processes, such as punching using a machine press or stamping press, blanking, embossing, bending, flanging, and coining. This could be a single stage operation where every stroke of the press produces the desired form on the sheet metal part, or could occur through a series of stages.

The process is usually carried out on sheet metal, but can also be used on other materials, such as polystyrene.

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BLANKING

 

Blanking is metal fabricating process, during which a metal workpiece is removed from the primary metal strip or sheet when it is punched. The material that is removed is the new metal workpiece or blank.

Characteristics of the blanking process include:

  • Its ability to produce economical metal workpieces in both strip and sheet metal during medium or high production processes,
  • The removal of the workpiece from the primary metal stock as a punch enters a die,
  • The production of a burnished and sheared section on the cut edge,
  • The production of burred edges,
  • The control of the quality by the punch and die clearance,
  • The ability to produce holes of varying shapes – quickly.

The blanking process forces a metal punch into a die that shears the part from the larger primary metal strip or sheet. A die cut edge normally has four attributes. These include:

  • burnish
  • burr
  • fracture
  • roll-over

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NOTCHING

 

Notching involves the cutting of various types of metal stock at an angle. Notchings are done to create a vertical cut in a tube or sheet stock. Notching is used in many different metals applications.

A notch is cut inward from the edge of the material, and is always cut at a measured angle that is calculated in accordance with the application that requires the notching. The vertical cut that is made in the stock is also made perpendicular to the edge of the material. This cut is usually made by either a metal-cutting band saw or a punching or shearing press machine to ensure accuracy in the fabrication process.

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QUALITY CHECK

 

We at Pearl Engineering Co. ensure that product quality is maintained or improved and manufacturing errors are reduced or eliminated. Quality control requires the business to create an environment in which both management and employees strive for perfection. This is done by training personnel, creating benchmarks for product quality, and testing products to check for statistically significant variations.

We have specialized force working hard to ensure that best quality is delivered to you. Quality is the prime priority at Pearl.