Service: Multiple CNC machining, bead sandblasting, hard anodized black, laser engraving, transparent zinc passivation

Materials: Aluminum 6061, Stainless Steel 303, C45 Steel, Silicon, Steel

Quantity: Pre production prototypes, each set consisting of 9 components

In the field of precision manufacturing, every process of transforming customer concepts into actual products is a rigorous test of technical strength, adaptability, and service quality. At the beginning of this year, we gladly undertook a significant project - the manufacturing of adjustable grip wrenches, thus embarking on a challenging and rewarding journey.

1、 Diversified services, forging the essence of products

From raw materials to finished products, a series of exquisite craftsmanship runs through, endowing products with excellent quality and unique charm. We provided comprehensive services for this project, including multiple computer numerical control (CNC) machining, bead blasting, hard anodizing, laser engraving, and transparent zinc passivation. Among them, CNC machining relies on advanced equipment and precision programming to perform micro level carving on various materials such as aluminum 6061, stainless steel 303, C45 steel, etc., repeatedly carving details to ensure that each component meets high-precision design requirements; The light bead sandblasting process is like a magical paintbrush, delicately covering the processing marks and giving the parts a smooth and beautiful appearance; Hard anodized black coats aluminum components with sturdy "armor", greatly enhancing their wear resistance and fearlessly enduring the test of time; Laser engraving uses precise strokes to engrave measurement markers on curved rods, providing users with precise rulers for operation; The transparent zinc passivation coating is like a protective shield, protecting the C45 steel shaft from corrosion and ensuring durability.

Based on the customer's demand for pre production prototypes, we have carefully prepared and each set contains 9 components, ready to embark on the manufacturing journey.

2、 Collaborative progress, overcoming numerous difficulties

Prototype breakthrough, resolving the problem of lagging: At the beginning of the prototype's development, thorny issues arose one after another, even if the components were processed correctly, the tools were stuck in the "quagmire" of lagging. By analyzing and delving into the root causes of friction and resistance alongside our clients, we can prescribe the right medicine. Cleverly adding shims to the fixed jaw, carefully creating countersunk holes in the regulator and floating jaw to reduce thread contact "binding", grinding off sharp edges of the shaft thread contour, and then finely sanding with sandpaper to give the surface a smooth texture. After careful improvement, the design has been completely refreshed, and the stubborn problem of lagging has disappeared, laying a solid foundation for pre production.

Press fit calibration, precise anchoring positioning: The length of the screw shaft and the accuracy of the end cap position are like mortise and tenon fit, which is crucial to the success or failure of the product. To eliminate clamping hazards, we use professional equipment to stabilize the end cap on the curved rod, strictly adhering to the "red line" tolerance of+/-0.5 millimeters, and ensuring precise assembly every time, paving the way for subsequent processes.

Balancing sliding fit and optimizing cost-effectiveness: Customers have high expectations for the "tightness" of sliding fit and expect it to reach the extreme. They are well aware that a slightly wider gap can amplify the drawbacks of jaw swinging and affect tool performance. We followed the requirements and fine tuned the sliding fit tolerance of the floating jaw, anchoring the bending rod to the 7.92mm specification of the grounding rod. At the same time, considering the balance between cost and performance, it is cautiously recommended to retain the original aperture of the jaw to adapt to the standard 8mm rod, in order to control quality at a reasonable cost and avoid "side effects" such as tool deformation caused by excessive pursuit of tight fit.

Breaking through the dilemma of deformation and unlocking the perfect process: C45 steel shafts have suffered setbacks in trial production, with frequent deformation and even fracture, soaring scrap rates, pressure on costs and delivery times, and constraints on tool use. Although stainless steel has the advantages of rust prevention and deformation resistance, its high cost makes customers hesitate. After repeated discussions, the plan for hardening C45 steel (around HRC40) has begun to show signs, but there are still hidden concerns about increased costs. With unremitting efforts, we have taken a new path and innovatively explored a set of exclusive processing methods, successfully taming the deformation problem of C45 steel shafts and achieving stable output in an unhardened state, with both cost-effectiveness and quality.

3、 Cultivate meticulously, carve quality details

Precision manufacturing process, controlling the entire process tolerance: Before the start of production, strict quality inspection of raw materials is carried out, and machine parameters are finely adjusted according to their characteristics. The processing points, specifications, and notes are prominently posted on the machine side bulletin board as a "navigation" for operation. The rod material has undergone standard material turning and precise bending, overcoming internal stress "hidden reefs" to ensure smooth parallel connection and prevent sliding and jamming. The shaft undergoes a complete transformation in CNC turning, with thread sharpening and surface polishing. Each step strictly adheres to the tolerance "fortress", ensuring smooth sliding of the regulator and free rotation of the shaft.

Craftsmanship in assembly and testing, safeguarding the quality of finished products: parts processing comes to an end, and the assembly process is in full swing. We carefully match gaskets and washers to cleverly adjust the shaft clearance, achieving a delicate balance between free rotation and tight fit. After assembly, the ultimate test is rigorously "examined", identifying hidden dangers one by one to ensure flawless quality. The packaging process is also not relaxed, with customized protective "armor" to ensure transportation without damage, presenting the perfect finished product to customers.

Post processing adds color and elevates product appearance and performance: After the parts are processed, stainless steel and aluminum components enter the sandblasting "workshop", where the processing "scars" quietly hide and the appearance skyrockets. The aluminum parts are then "upgraded" to the hard anodizing process, and their wear resistance "breaks through the cocoon and becomes a butterfly". The C45 steel shaft is coated with a transparent zinc passivation "outer layer", which enhances its anti rust ability. Laser engraving accurately marks the measurement scale, adding color and empowerment to the practicality of the product.

With unremitting efforts and professional competence, we have received praise from customers and successfully helped the concept take root, transforming into high-quality products. In the future, we will uphold craftsmanship, continue to cultivate precision manufacturing, continue to write more quality legends, and escort customers on their dream journey.