Locking Pliers Manufacturing Process
What is a Locking Pliers ？
Locking pliers (also known as Vise-Grips, Mole wrenches, or Mole grips) are pliers that may be locked into place utilizing a “over-center” cam motion. Locking pliers are available in a variety of jaw designs, including needle-nose pliers, wrenches, clamps, and various forms for securing metal pieces for welding. They also come in various sizes.
15 Steps Locking Pliers Manufacturing Process
1.Cutting：The first step in the wrench manufacturing process is to cut the material. The ideal cut design makes the best use of the material.
2. Forging：CHISEN’s forging technique guarantees wrenches have exceptional strength qualities. Notably, it retains the required fiber orientation in a forged item, keeping it unbroken and identical to a rolled blank. That feature of forged components is critical for obtaining the properties of items subjected to severe and dynamic loads.
3. Trimming：Excess material is removed from forged pieces with a specialized tool that trims items along the dividing shape. Some items are also trimmed while hot, eliminating significant mechanical surface deformation on the cut component and establishing a strong foundation for uninterrupted machining.
4. Joint Processing：A bore hole is created using a specialized CNC machine to act as the pivot point for the pliers. At the same time, the joint is machined and sliding surfaces are created, guaranteeing that the pliers move precisely and smoothly during operation.
5. Shape the head section of pliers：Complex plier surfaces are sculpted with a special-purpose trimming tool that moves linearly. That procedure comprises molding the joint’s exterior radii and jaw teeth utilized to grasp diverse forms.
6. Milling the Cutting Edges：A special-purpose CNC machine is utilized to create cutting edges, providing pliers the necessary capability. The angle of a cutting edge and the thickness of the top edge are both important. Optimal and precise machining of cutting edges offers pliers the qualities needed to cut wire.
7. Riveting：Pliers are built and fastened together with a rivet. At that point, it is critical to ensure that the joint is strong enough while still enabling the jaws to move freely but without slack.
8. Machining the head of pliers：At that point, the surface of the pliers is evened to eliminate any height discrepancies that may emerge as a result of thickness tolerance margins while forging a part or during further machining, including riveting.
9. Shaping：The remaining untreated surfaces are ground with a tape grinding machine to provide higher-quality surfaces than can be attained by forging. The pliers have reached their final shape, but the roughness of particular surfaces still has to be modified.
10. Quenching and Tempering：Pliers are heat treated by first annealing them in oil and then tempering. This method of heat treatment guarantees that the material’s microstructure is acceptable and that the end product has great strength qualities. Quality heat treatment improves the material’s mechanical qualities and extends the life of pliers.
11.Sanding：At this point, abrasive materials are used to smooth the product surfaces and remove oxides that form during heat treatment. Sanded surfaces are uniformly rough and precise, giving items a superior look. Some surfaces are later treated more accurately, resulting in a contrasting effect.
12. Chrome Plating and Polishing：Pliers are galvanized with a thin covering of nickel and chrome to prevent oxidation. This offers the items an attractive look with a shiny silver surface. Chrome-plated surfaces additionally increase the pliers’ resistance to external interference.
13. Laser inscription：Pliers are marked with product identifying information using a sophisticated laser inscription technology.
14. Insulation Mounting：Pliers come with plastic handles that provide a comfortable, sturdy, and ergonomic grip.
15. Oiling and Control：The sliding surfaces of a joint are appropriately lubricated to ensure that the pliers operate smoothly. During that procedure, pliers are thoroughly inspected for quality and cosmetic qualities to guarantee that CHISEN pliers consistently fulfill the needs of the most demanding users.